20. 7.EE,4b
Rina receives a $70 gift card to use at the Bootery.
She buys a pair of boots for $36 and 8 pairs of socks.
She does not use the entire amount on the gift card.
Which inequality can be used to find s, the price in
dollars of each pair of socks?
a) 70 + 8s < 36
b) 36 + 8s < 70
c) 70 - 85 < 36
d) 36 - 8s < 70

Answers

Answer 1
Imagine still being in school!!

Related Questions

[tex]\sqrt{25}[/tex]

Answers

Answer:

5

Step-by-step explanation:

Calculate the square root of 25 and get 5.

5 I just thought of what # gets me to 25

PLS HELP QUICK IM BEGGINGGGG!!!!! PLEASE HELP ME!!

The following box plot represents the heights of the students in Mr. Taylor's fourth grade math class.

In a complete sentence, answer the following question:
One of the values in this data set is 138. In this box plot, what does this value mean?

Answers

Answer:

The value 138 means that this height (138cm) is less than the average height of a 4th grader.

Answer: No credit wanted

Step-by-step explanation:

The other guy is completely right.

Evaluate:
[tex]{ \int \limits^\pi_{ \frac{1}{4}\pi}{ {e {}^{2 \sigma} (\sqrt{1 - { \sigma}^{2} } ) d \sigma}}}[/tex]

Answers

Answer:

hope this answer helps.

Use the tables to answer the question.
How can you determine which store offers a better price on guitar lessons?
A. You cannot determine this from the information given.
B. Compare the most expensive price from each store’s table.
C. Compare the least expensive price from each store’s table.
D. Find the cost of 1 week of guitar lessons for each store and compare.

Answers

Answer:

D. Find the cost of 1 week of guitar lessons for each store and compare.

Step-by-step explanation:

Find the cost for 1 week of guitar lessons by finding the slope of the data.

[tex]\frac{y_2-y_1}{x_2-x_1}\\\\ A.)\frac{132-66}{6-3}=\frac{66}{3}=22\\\\ B.)\frac{168-84}{8-4}=\frac{84}{4}=21[/tex]

Therefore, Store B would be the best choice.

A toddler is allowed to dress himself on Mondays, Wednesdays, and Fridays. For each of his shirt, pants, and shoes, he is equally likely to put it on correctly as incorrectly. Getting these articles of clothing on correctly are independent of each other. On the other days, the mother dresses the toddler with 100% accuracy. Given that the toddler is correctly dressed, what is the probability that today is Monday

Answers

Answer:

0.0286 = 2.86% probability that today is Monday.

Step-by-step explanation:

Conditional Probability

We use the conditional probability formula to solve this question. It is

[tex]P(B|A) = \frac{P(A \cap B)}{P(A)}[/tex]

In which

P(B|A) is the probability of event B happening, given that A happened.

[tex]P(A \cap B)[/tex] is the probability of both A and B happening.

P(A) is the probability of A happening.

In this question:

Event A: Dressed correctly

Event B: Monday

Probability of being dressed correctly:

100% = 1 out of 4/7(mom dresses).

(0.5)^3 = 0.125 out of 3/7(toddler dresses himself). So

[tex]P(A) = 0.125\frac{3}{7} + \frac{4}{7} = \frac{0.125*3 + 4}{7} = \frac{4.375}{7} = 0.625[/tex]

Probability of being dressed correctly and being Monday:

The toddler dresses himself on Monday, so (0.5)^3 = 0.125 probability of him being dressed correctly, 1/7 probability of being Monday, so:

[tex]P(A \cap B) = 0.125\frac{1}{7} = 0.0179[/tex]

What is the probability that today is Monday?

[tex]P(B|A) = \frac{P(A \cap B)}{P(A)} = \frac{0.0179}{0.625} = 0.0286[/tex]

0.0286 = 2.86% probability that today is Monday.

The length of the shadow of a flagpole was found to be 72 feet. The shadow of a 3 foot picket fence in line with the flagpole was 4 feet. What is the height of the flagpole.

Answers

Answer:

54ft

Step-by-step explanation:

if 3foot is 4ft tall

then a shadow of 72 ft will be how tall?= x

4x =3ft by 72ft

4x= 216ft

x= 216/4

×=54

There are two machines available for cutting corks intended for use in wine bottles. The first produces corks with diameters that are normally distributed with mean 3 cm and standard deviation 0.10 cm. The second machine produces corks with diameters that have a normal distribution with mean 3.04 cm and standard deviation 0.04 cm. Acceptable corks have diameters between 2.9 cm and 3.1 cm. What is the probability that the first machine produces an acceptable cork

Answers

Answer:

0.6827

Step-by-step explanation:

Given that :

Mean, μ = 3

Standard deviation, σ = 0.1

To produce an acceptable cork. :

P(2.9 < X < 3.1)

Recall :

Z = (x - μ) / σ

P(2.9 < X < 3.1) = P[((2.9 - 3) / 0.1) < Z < ((3.1 - 3) / 0.1)]

P(2.9 < X < 3.1) = P(-1 < Z < 1)

Using a normal distribution calculator, we obtain the probability to the right of the distribution :

P(2.9 < X < 3.1) = P(1 < Z < - 1) = 0.8413 - 0.1587 = 0.6827

Hence, the probability that the first machine produces an acceptable cork is 0.6827

whats the distance between (-9, -6) and (-2, 2)

Answers

Hi! I'm happy to help!

To find the answer we first have to find the distance between the x and y values.

From the first point, we travel from the x point -9, to the x point, -2. This means that we traveled 7 units.

From the first point, we also travel from the first y point, -6, to the second y point, 2. This means we traveled 8 units.

From here we use the Pythagorean Theorem.

The Pythagorean Theorem says that: a²+b²=c²

We can use a and b (the 7 and 8 units we traveled) to find c (the distance between).

Let's insert our values.

7²+8²=49+64=113=c²

To find c, we need to find the square root of c².

√113

This is 10.6301..., if you want to round the the hundredth, or thousandth, your answer would be 10.63, rounding to the nearest tenth, it would be 10.6, and rounding to the nearest whole number would be 11.

I hope this was helpful, keep learning! :D

The answer to this math problem need help

Answers

Step-by-step explanation:

you know that you can copy and paste and give the answer

Instructions: State what additional information is required in order
to know that the triangles in the image below are congruent for the
reason given
Reasory. AAS Postulate

Answers

Answer:

YWX = DFE

Step-by-step explanation:

AAS means angle angle side. so, we need 2 angles and 1 side.

we have 1 side and one angle confirmed.

so, we need one of the other two angles (W or Y vs. F or D) confirmed.

they probably want W and F as answer, as Y and D would make it a special case of AAS : ASA.

2. How many solutions does this system of equations have? *
y = 5x – 2
y = 5x + 7

Answers

Answer:

No solution.

Step-by-step explanation:

[tex]{ \sf{y = ±∞ \: \: and \: \: x = ±∞}}[/tex]

NO SOLUTIONS!! You’re welcome

What is the value of x?

Answers

Answer:

x=30°

hopefully this answer can help you to answer the next question

The incomplete work of a student to solve an equation is shown below:

Step 1: 4x + 12 = 4
Step 2: ?
Step 3: x = −8 ÷ 4
Step 4: x = −2

What is the missing Step 2?

4x = 8
4x = 16
4x = −16
4x = −8

Answers

Answer: 4x = -8

Reasoning:
Multiply both sides by 4

-5 + 3 and also what is 1/4 of 24
What is the answer i am struggling

Answers

Answer:

-5+3=-2

1/4 of 24 = 6

Step-by-step explanation:

Add :-

a+2b-3c, -3a+b+2cand 2a -3b+c​

Answers

Answer:

[tex]a + 2b -3 c + - 3a + b + 2c + 2a - 3b + c \\ = a - 3a + 2a + 2b + b - 3b - 3c + 2c + c \\ 0a + 0b + 0c \\ thank \: you[/tex]

a+2b-3c+(-3a+b+2c) +(2a-3b+c)

=a+2b-3c-3a+b+2c+2a-3b+c

=a-3a+2b+2b+b-3b-3c++2b+c

=0a+0b+0c

=0

Therefore, the addition of the expressions, a+2b-3c+(-3a+b+2c) +(2a-3b+c) is zero or 0.

To know more about algebraic expressions

https://brainly.com/question/28307605

Find the measure of the incanted angle to the nearest degree

Answers

Answer:

15.5⁰ or approximately 16⁰

Step-by-step explanation:

let unknown side be x

cos x= 53/55

cos x= 0.9636

x=cos inverse of 0.9636

x=15.5⁰

Answer:

[tex]cosx = \frac{53}{55} \\ x = {cos}^{ - 1} ( \frac{53}{55} ) \\ x = 15.4987[/tex]

The ratio of frogs to toads was 3 to 7. If there were 1280 frogs and toads in all, how many were frogs?

Answers

Answer:

348 frogs

Step-by-step explanation:

ratio = 3:7

total of ratio = 10

frogs = 3/10 × 1280 = 348 frogs

Answer:

let the ratio be 3x and 7x.

3x+7x=1280

10x=1280

x=128

Now

frogs =3x=3*128=384

toads =7x=7*128=896

Use the commutative law of multiplication to rewrite 67 x 13.

A. 3 X 671
B. 13 x 67
C.6 X 7 X1 X3
D.80

Answers

Answer:

A. 671*3

B. 67*13

C. 3*1*7*6

D. 1*80

4. Manuel swims at a speed of 1 yard per second. How many feet per minute does he swim?​

Answers

Answer:

180 Feet Per Minute

Step-by-step explanation:

Please mark me as brainliest and rate 5 stars!

180 feet per minute.

The resistors produced by a manufacturer are required to have an average resistance of 0.150 ohms. Statistical analysis of the output suggests that the resistances can be approximated by a normal distribution with known standard deviation of 0.005 ohms. We are interested in testing the hypothesis that the resistors conform to the specifications.

Requied:
a. Determine whether a random sample of 10 resistors yielding a sample mean of 0.152 ohms indicates that the resistors are conforming. Use alpha = 0.05.
b. Calculate a 95% confidence interval for the average resistance. How does this interval relate to your solution of part (a)?

Answers

Answer:

a) The p-value of the test is 0.2076 > 0.05, which means that the sample indicates that the resistors are conforming.

b) The 95% confidence interval for the average resistance is (0.147, 0.153). 0.152 is part of the confidence interval, which means that as the test statistic in item a), it indicates that the resistors are conforming.

Step-by-step explanation:

Question a:

The resistors produced by a manufacturer are required to have an average resistance of 0.150 ohms.

At the null hypothesis, we test if this is the average resistance, that is:

[tex]H_0: \mu = 0.15[/tex]

We are interested in testing the hypothesis that the resistors conform to the specifications.

At the alternative hypothesis, we test if it is not conforming, that is, the mean is different of 0.15, so:

[tex]H_1: \mu \neq 0.15[/tex]

The test statistic is:

[tex]z = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}[/tex]

In which X is the sample mean, [tex]\mu[/tex] is the value tested at the null hypothesis, [tex]\sigma[/tex] is the standard deviation and n is the size of the sample.

0.15 is tested at the null hypothesis:

This means that [tex]\mu = 0.15[/tex]

Sample mean of 0.152, sample of 10, population standard deviation of 0.005.

This means that [tex]X = 0.152, n = 10, \sigma = 0.005[/tex]

Value of the test statistic:

[tex]z = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}[/tex]

[tex]z = \frac{0.152 - 0.15}{\frac{0.005}{\sqrt{10}}}[/tex]

[tex]z = 1.26[/tex]

P-value of the test and decision:

The p-value of the test is the probability of the sample mean differing from 0.15 by at least 0.152 - 0.15 = 0.002, which is P(|z| > 1.26), given by two multiplied by the p-value of z = -1.26.

Looking at the z-table, z = -1.26 has a p-value of 0.1038.

2*0.1038 = 0.2076

The p-value of the test is 0.2076 > 0.05, which means that the sample indicates that the resistors are conforming.

Question b:

We have to find our [tex]\alpha[/tex] level, that is the subtraction of 1 by the confidence interval divided by 2. So:

[tex]\alpha = \frac{1 - 0.95}{2} = 0.025[/tex]

Now, we have to find z in the Z-table as such z has a p-value of [tex]1 - \alpha[/tex].

That is z with a p-value of [tex]1 - 0.025 = 0.975[/tex], so Z = 1.96.

Now, find the margin of error M as such

[tex]M = z\frac{\sigma}{\sqrt{n}}[/tex]

In which [tex]\sigma[/tex] is the standard deviation of the population and n is the size of the sample.

[tex]M = 1.96\frac{0.005}{\sqrt{10}} = 0.003[/tex]

The lower end of the interval is the sample mean subtracted by M. So it is 0.15 - 0.003 = 0.147.

The upper end of the interval is the sample mean added to M. So it is 0.15 + 0.003 = 0.153.

The 95% confidence interval for the average resistance is (0.147, 0.153). 0.152 is part of the confidence interval, which means that as the test statistic in item a), it indicates that the resistors are conforming.

The PTA sells 100 tickets for a raffle and puts them in a bowl. They will randomly pull out a ticket for the first prize and then another ticket for the second prize. You have 10 tickets and your friend has 10 tickets. What is the probability that your friend wins the first prize and you win the second prize?

Answers

Jÿïôò śfrtÿ hjkÿï èrï

35) Like J is represented by the equation 3x-2y=10. Line M is perpendicular to line J at (6,-1) What is the equation of Line M

Answers

Answer:

y=-2/3x+3

Step-by-step explanation:

the equation of line J is y=3/2x-5

perpendicular slope would be -2/3

you want it at point (6, -1) so sub the points into y=-2/3x+b

-1=-2/3(6)+b

-1=-4+b

3=b

y=-2/3x+3

How is the series 6+13+20+...+111 represented in summation notation?

Answers

Notice that

6 + 7 = 13

13 + 7 = 20

so if the pattern continues, the underlying sequence in this series is arithmetic with first term a = 6 and difference d = 7. This means the k-th term in the sequence is

a + (k - 1) d = 6 + 7 (k - 1) = 7k - 1

The last term in the series is 111, which means the series consists of 16 terms, since

7k - 1 = 111   ==>   7k = 112   ==>   k = 16

Then in summation notation, we have

[tex]\displaystyle 6+13+20+\cdots+111 = \boxed{\sum_{k=1}^{16}(7k-1)}[/tex]

What is the conjugate of 3 + 6i?
A -3 - 61
B 3 - 6i
C 3 + 6i
D 9i

Answers

Answer:

C.3-6

Step-by-step explanation:

Every complex number has a complex conjugate.

Examples is a+bi the conjugate is a-bi,if your adding the two conjugate its going to be 2a and if your subtracting the result is 2bi.And if multiplied it is seen as complex number which are a²+b²

PLEASEE HELP ME ASAPPP (geometry)

Answers

Answer:AE=EC và BF=FC => EF là đường trung bình của tam giác ABC

=> EF // và bằng 1/2 AB

=> AB = 16

Step-by-step explanation:

Answer:

AB=16

Step-by-step explanation:

Midsegment Theorem states that the segment connecting the midpoints of two sides of a triangle is parallel to the third side and half as long.

The mid-segment of a triangle, which joins the midpoints of two sides of a triangle, is parallel to the third side of the triangle and half the length of that third side of the triangle.

AD=DB

AD+DB=AB=2EF

AB=2×8=16

A new coffee shop is being built. Its location is the reflection of the arcade's coordinates across
the y-axis. Which procedure will find the correct distance between the arcade and the new coffee shop?( there is more than one answer)

Answers

Step-by-step explanation:

mark me brainlist

please mark mep

there is a 400 meter track. tom rides a bike at the speeed of 450 meters/minute. mike runs at the speed of 250 meters/minute. if both of them set out at the same time and same place, how soon will they meet for the first time?

Answers

Answer: Distance: 2250

Step-by-step explanation:

Find GCF of 450 and 250

3 write the factor of the following (1) 48 (2) 36 (3) 28 (4) 100 (5) 125 ​

Answers

Answer:

FACTORING THE NUMBERS :-

well u didnt say to prime factors so i am writing all factors

1) 48 => 1, 2, 3, 4, 6, 8, 12, 16, 24 and 48    ( all are plus and minus )

2) 36 => 1, 2, 3, 4, 6, 9, 12, 18 and 36    ( all are plus and minus )

3) 28 => 1, 2, 4, 7, 14 and 28    ( all are plus and minus )

4) 100 => 1, 2, 4, 5, 10, 20, 25, 50, and 100  ( all are plus and minus )

5) 125 => 1, 5, 25, 125   ( all are plus and minus )

is it worth brainliest...

yes ofc

QUESTION 3.1 POINT
An investment pays 25% interest compounded monthly. What percent, as a decimal, is the effective annual yied? Enter your
answer as a decimal rounded to four decimal places.

Answers

9514 1404 393

Answer:

  0.2807

Step-by-step explanation:

The relationship between the effective annual yield (e) and the nominal annual interest rate (r) compounded n times per year is ...

  e = (1 +r/n)^n -1

  e = (1 +0.25/12)^12 -1 = 0.2807 . . . . . . about 28.07%

If lan does a job in 132 hours and with the help of Danielle they can do it together in 44 hours, how long
would it take Danielle to do it alone

Answers

Answer:

88 hours

Step-by-step explanation:

Ian = 132

Daniel + Ian = 44

Daniel = Ian - 44

= 132-44 = 88 hours

Other Questions
Which expressions are equivalent to -6n+(-12)+4nChoose all answers that apply:A. 4(n-3) -6nB. 2(2n-6)C. None of the above There once was a man who had saved a lot of moneyduring his life. It had become extremely important to him.It was so important, in fact, that he made his wife promisehim that, when he died, she would bury all his money withhim. Well one day, he did die. At the funeral, dressed inblack and crying, the man's wife stood and placed a shoebox inside the casket right before he was buried. Her friendleaned over and asked her, "Did you really bury all hismoney with him?" The wife answered, "I promised I would.So, I put all his money into my account and wrote him acheck. This story just shows you that you really can't takemoney with you when you die.What do the first two lines tell you about the man?A. That he loved moneyB. That he was very generousC. That he loved his wifeD. That he had too much money How we get this answer?? I need the way with rules? A glass block in air has critical angle of 49. What will happen to a ray of light coming through the glass when it is incident at and angle of 50 at the glass air boundary? Illustrate with a diagram -3 , 1 , 5 , 9 , 13find the 11th term of this sequence show your working do they plant rice seedling into passive voice Pleaseee hellllpppp!!!! please help me please help me HELP WILL MARK BRANLIEST.During the process of demographic transition, a movement from stage 1 to stage 2 is most likely caused byA)social changesB)improved education,C)rural to urban migrationD)technological developments,E)increasing employment opportunities, Transactions that affect earnings do not necessarily affect cash. Identify the effect, if any, that each of the following transactions would have upon cash and net income.(a) Purchased $100 of supplies for cash.(b) Recorded an adjusting entry to record use of $20 of the above supplies.(c) Made sales of $1,200, all on account.(d) Received $800 from customers in payment of their accounts.(e) Purchased equipment for cash, $2,500. [SPANISH, 19 POINTS]Your aunt wants to buy a new house. She needs at least two bedrooms and a garage. You are helping her stick to her budget.Muebles $10.000Casa $170.000Reparaciones < > $5.000Casa 1:Vendo inmueble bonito de 110 m2 en la ciudad. Tiene un dormitorio, dos baos, cocina-comedor y un balcn pequeo. El dormitorio necesita una puerta. La puerta cuesta mil dlares. No tiene todos los muebles. Necesita una mesa, un sof y cuatro sillas. Los muebles cuestan seis mil dlares.El precio pedido es ciento sesenta mil dlares.Casa 2:Casa de 120 m2 en venta. Tiene sala y comedor, dos dormitorios, un bao, cocina y jardn. No tiene garaje. Vendo un frigorfico por mil dlares con la compra de la casa.El precio pedido es doscientos cinco mil dlares.Casa 3:Inmueble de 130 m2 con sala, un dormitorio, cocina y dos baos. Tiene un garage grande. Hay todos los muebles. Necesita dos ventanas nuevas. Las ventanas cuestan cuatro mil dlares.El precio pedido es ciento setenta y cinco mil dlares.Based on their budget and needs, which house or houses would be options for them?[A, NOT THIS ONE] 1st house[B] 1st and 2nd house[C] 1st and 3rd house[D] 2nd house What is the value of X? Two years ago Sam bought a newly issued three-year US government bond (a risk-free asset) with a principle of $1000 and a 5% coupon rate. This year, one year before maturity, Sam decides to sell the bond and sees that the price people are willing to pay for his bond is now $1019.Required:a. Has the interest rate gone up or down since Sam purchased the bond?b. What is the the current interest rate for bonds when Sam decides to sell? Santiago is an election officer. On election day, he travels from his home to the polling place, which is 5.4 miles away. What is the distance between Santiago's home and the polling place on a map with a scale of 1 inch : 0.6 miles? A 61.1-kg person, running horizontally with a velocity of +2.16 m/s, jumps onto a 16.1-kg sled that is initially at rest. (a) Ignoring the effects of friction during the collision, find the velocity of the sled and person as they move away. (b) The sled and person coast 30.0 m on level snow before coming to rest. What is the coefficient of kinetic friction between the sled and the snow? A historian is examining religions role in history which question might the historian ask if she were organizing her study by period Think about the setting and plot of "Up the Slide." What role did the setting play in developing the plot? Write a paragraph of about 100 words explaining how the setting of one scene helped show a potential problem in the story. Include details from the story to support your answer. Which branch of the federal government must approve a budget ? Antibiotics, pesticides and polychlorinated biphenyls are ________ which can cause foodborne illness. Suppose the line y = 2.8333x - 22.4967 describes the relation between the club-head speed (in miles per hour), x and the distance a golf ball travels (in yards), y.(a) Predict the distance a golf ball will travel if the club-head speed is 100 mph. (b) Suppose the observed distance a golf ball traveled when the club-head speed was 100 mph was 265 yards. What is the residual? (c) The golf ball will travel 260.8 yards. (Round to the nearest tenth as needed.) (d) The residual is:_________ (Round to the nearest tenth as needed.)