7. How much would it cost to buy 10 pens from the school store?

8. How much will it cost for 10 pencils and one notebook?​

7. How Much Would It Cost To Buy 10 Pens From The School Store?8. How Much Will It Cost For 10 Pencils

Answers

Answer 1
Answers:

Answer to Question 7: $5

Answer to Question 8: $6.25

Step-by-step explanation:

Explanation to Question 7: 0.5 × 10 = $5

Explanation to Question 8: 0.5 × 10 = $5 => 5 + 1.25 = $6.25

Hoped this helped.


Related Questions

A truck and carry a load of 5000 pounds assuming that it can be cut to fit how many feet of steel beam in Winx 32.6 pounds can the truck carry

Answers

About 153 Winx. Because 5000 divided by 32.6 is 153.374233129.

7. What is the value of the expression?

3/4 divided by 1/2

Answers

Answer:

3/4 / 1/2

3/4 * 2/1

6/4

1 2/4

1 1/2 or 1.5

I need help with my questions​

Answers

4 because of the comunitive property

Answer:

1) (-A+B)=(B-A) is true

Step-by-step explanation:

I am guessing you are looking for which statement is true. The answer is 1, (-A+B)=(B-A), as the others are incorrect.

2) A x 0 = 0, not 1

3) - (-A) = A, not - A

4) A/B will not be the same as B/A unless the values of A and B are 1

Have a nice day!

     I hope this is what you are looking for, but if not - comment! I will edit and update my answer accordingly. (ノ^∇^)

- Heather

5) How many turkeys will be eaten on Thanksgiving Day?

First Guess = __________

Average Turkey Weight = 27 pounds
Number of Americans = 328 million
Amount needed per person = 1.5 pounds
Percent of Americans that eat turkey on Thanksgiving = 91%

Mathematical Estimate = __________ (Show your work)

Answers

Answer: mathmatical estimate 46 million

Step-by-step explanation:

456million first guess

Can someone please help me for questions 22 and 23???

Answers

22. 2x - 3 would be the equation, the numbers could be x = 4, then y = 5. The other number would be x = 5 and y = 7

23. First you need to find the difference between 0 secs and 20 sec , which is 37. So the amount lost in 10 secs would be 18.5mm. Then you could multiply this by 3 to find for 30 secs, which is 55.5mm and you subtract 55.5 from 120 which gives 64.5mm.

URGENT I REALLY NEED THIS DONE, IM GIVING OUT 30 POINTS!

Determine if XY is tangent to circle Z.

A.) Yes
B.) No

Answers

It’s A (Yes) but I’m not sure

yo someone pls help me

Answers

Answer:

3q+4+9=-14

(Simplify)

3q+13=-14

(Subtraction property of equality)

3q=-27

(Multiplication property of equality)

q=-9

Hope This Helps!!!

Answer:

[tex]q =( - 9)[/tex]

Step-by-step explanation:

Hey there,

[tex]3q + 4 + 9 = - 14[/tex]

[tex]3q + 13 = - 14[/tex]

[tex]3q = - 14 - 13[/tex]

[tex]3q = - 27[/tex]

[tex] \frac{3q}{ 3 } = \frac{ - 27}{3} [/tex]

[tex]q = - 9[/tex]

Hope this helps you.

Let me know if you have any other questions :-)

Elizabeth uses 33.15 ounces of granola for 15 servings of trail mix.
If each serving contains the same amount of granola, how much granola is in each
serving?

Answers

Answer:

Step-by-step explanation:

We have to do 33.15 / 15 to find how much is in each.

We change 33.15 into a fraction

We get 33 3/20

We do 33 3/20 / 15 = 33 3/20 * 1/15 = 663/20 * 1/15 = 663/300 = 2 63/300

Therefore, 2 63/300 ounces of granola is in a serving.

The lifespans of seals in a particular zoo are normally distributed. The average seal lives 13.8 years; the standard
deviation is 3.2 years.
Use the empirical rule (68 - 95 - 99.7%) to estimate the probability of a seal living less than 7.4 years.

Answers

Answer:

67.715

Step-by-step explanation:

(68 - 95 - 99.7%)

What is the equation of the blue line?

Answers

9514 1404 393

Answer:

  y = 2

Step-by-step explanation:

A horizontal line has the equation ...

  y = constant

The constant can be found by counting grid squares or reading the label on the y-axis where the line crosses.

The equation of the blue line is y = 2.

Which line shows the first error in the solution? Three more than a number divided by 4 is -12. What is the number?

Answers

Answer: Line 3

Explanation:

On the third line is where the student went from -12-3 to -9. This is not correct. Instead, it should be -12-3 turning into -15.

Think of it like being 12 feet under water (the number -12) and then moving 3 more feet deeper under water. You'll move down 3 to get to -15 to represent being 15 feet under water. Use a vertical number line if needed.

You can also compute -12-3 like 12+3 = 15, then just make everything negative. So -12-3 = -15

Help me please i am stuck

Answers

Answer: Angel observes a marble travel along a horizontal path at a constant rate. The marble travel 2/3 of the length- of the path in 50 seconds. At that rate, how many seconds does it take the object to travel the full length?                                

Step-by-step explanation: First, reason down from 2/3 to 1/3. Enter all values as fractions (proper or improper) or whole numbers. You will need to  convert mixed numbers to improper fractions.

Christopher buys 1/2 pounds of cheese for $3.60. How much would it cost per pound of cheese?

Answers

Answer:

$7.20

Reasoning:

[tex]\frac{1}{2} * 2=1[/tex]

[tex]3.60*2=7.20[/tex]

What is the perimeter of a rectangle with a length of 21 cm and a width of 37 cm?

Answers

Answer:

the awnser is 777 do length x width

Translate: 20 more than a number is 55.

Answers

Answer:75

Step-by-step explanation:55+20=75

pls dont pwm . will mark brainliest✌

Answers

Answer:

Option A

Step-by-step explanation:

   We know that the "3x ? 2" line must be positive, so it cannot be C or D. The other line is negative, so the "2x ? 5" line must be -2x. This gets rid of option B, leaving us with our answer of A!

Have a nice day!

    I hope this is what you are looking for, but if not - comment! I will edit and update my answer accordingly. (ノ^∇^)

- Heather

alguien me ayuda? porfa

Answers

Answer:

1.  -2

2.  -10

3.  -30

4.  -2

5  -21

6.  -10

7.  -1

8.  -4

9.  -170

10.  -15

Step-by-step explanation:

Find cotθ, cosθ, and secθ, where θ is the angle shown in the figure.
Give exact values, not decimal approximations.

Answers

Answer:

[tex] \cos( \theta) = \frac{5}{8} \\ {8}^{2} = {5}^{2} + {opp}^{2} \\ {opp}^{2} = 64 - 25 = 39 \\ opp = \sqrt{39} \\ \sin(\theta) = \frac{\sqrt{39}}{8} \\ \tan(\theta) = \frac{ \sqrt{39} }{5} \\ \cot(\theta) = \frac{1}{\tan(\theta)} = \frac{1}{\frac{ \sqrt{39} }{5}} \\ \cot(\theta) = \frac{5}{ \sqrt{39} } \\ \csc( \theta) = \frac{1}{\sin(\theta)} = \frac{1}{\frac{\sqrt{39}}{8}} \\ \csc( \theta) = \frac{8}{ \sqrt{39} } \\ \sec( \theta) = \frac{1}{\cos( \theta) } = \frac{1}{ \frac{5}{8} } \\ \sec( \theta) = \frac{8}{5} [/tex]

For given angle [tex]\theta[/tex],

[tex]\bold{cot(\theta)=\frac{5}{6.24}}\\\\ \bold{cos(\theta)=\frac{5}{8}}\\\\ \bold{sec(\theta)=\frac{8}{5}}[/tex]

What is cosine of angle?

In a right triangle, for angle Ф

cos(Ф) = adjacent side of angle Ф / hypotenuse

What is sine of angle?

In a right triangle, for angle Ф

cos(Ф) = opposite side of angle Ф / hypotenuse

What is secant of angle?

In a right triangle for an angle Ф,

sec(Ф) = 1 / (cos(Ф))

What is cotangent formula for an angle Ф?

In a right triangle for an angle Ф,

cot(Ф) = cos(Ф) / sin(Ф)

What is Pythagoras theorem?

For a right triangle,

[tex]c^2=a^2+b^2[/tex]

where 'c' represents the hypotenuse

'a' and 'b' be the other two sides of the right triangle

For given example,

The adjacent side of [tex]\theta[/tex] is 5 and the hypotenuse is 5.

[tex]\bold {cos(\theta)=\frac{5}{8}}[/tex]

We find the opposite side of the angle [tex]\theta[/tex] using Pythagoras theorem.

Let 'x' be the opposite side of the angle [tex]\theta[/tex] .

By Pythagoras theorem,

[tex]\Rightarrow 8^{2} =x^{2} + 5^{2}\\\\ \Rightarrow x^{2} =64-25\\\\ \Rightarrow x=\sqrt{39}\\\\ \Rightarrow x=6.24[/tex]

So, the opposite side of the angle [tex]\theta[/tex]  is 6.24 units.

[tex]sin(\theta)=\frac{6.24}{8}[/tex]

So, the value of [tex]cot(\theta)[/tex] would be,

[tex]\Rightarrow cot(\theta)=\frac{cos(\theta)}{sin(\theta)}\\\\\Rightarrow cot(\theta)=\frac{\frac{5}{8} }{\frac{6.24}{8} } \\\\\Rightarrow \bold{cot(\theta)=\frac{5}{6.24}}[/tex]

Now we find the value of [tex]\bold{sec(\theta)}[/tex]

[tex]\Rightarrow sec(\theta)=\frac{1}{cos(\theta)}\\\\\Rightarrow sec(\theta)=\frac{1}{\frac{5}{8} }\\\\ \Rightarrow \bold{sec(\theta)=\frac{8}{5}}[/tex]

Therefore, for given angle [tex]\theta[/tex],

[tex]\bold{cot(\theta)=\frac{5}{6.24}}\\\\ \bold{cos(\theta)=\frac{5}{8}}\\\\ \bold{sec(\theta)=\frac{8}{5}}[/tex]

Learn more about cotθ, cosθ, and secθ here:

https://brainly.com/question/3998961

#SPJ2

In a city of half a million, there are initially 800 cases of a particularly virulent strain of flu. The Centers for Disease Control and Prevention in Atlanta claims that the cumulative number of infections of this flu strain will increase by 40% per week if there are no limiting factors. Make a logistic model of the potential cumulative number of cases of flu as a function of weeks from initial outbreak, and determine how long it will be before 100,000 people are infected. (Round your answer to two decimal places.)

Answers

Using the logistic equation, it is found that:

The model is:

[tex]P(t) = \frac{500000}{1 + 624e^{-0.4t}}[/tex]

It will take 10 days before 100,000 people are infected.

The logistic equation for a population is given by:

[tex]P(t) = \frac{K}{1 + Ae^{-kt}}[/tex]

[tex]A = \frac{K - P(0)}{P(0)}[/tex]

In which:

K is the carrying capacity. P(0) is the initial value. k is the growth rate, as a decimal.

In this problem:

Population of half a million, which is the carrying capacity, hence [tex]K = 50000[/tex].The strain increases by 40% per week, hence [tex]k = 0.4[/tex].Initially, there were 800 cases, hence [tex]P(0) = 800[/tex].

Then:

[tex]A = \frac{500000 - 800}{800} = 624[/tex]

[tex]P(t) = \frac{500000}{1 + 624e^{-0.4t}}[/tex]

The time until 100,000 people are infected is t for which P(t) = 100000, hence:

[tex]P(t) = \frac{500000}{1 + 624e^{-0.4t}}[/tex]

[tex]100000 = \frac{500000}{1 + 624e^{-0.4t}}[/tex]

[tex]0.1 = \frac{1}{1 + 624e^{-0.4t}}[/tex]

[tex]0.1 + 62.4e^{-0.4t} = 1[/tex]

[tex]62.4e^{-0.4t} = 0.9[/tex]

[tex]e^{-0.4t} = \frac{0.9}{62.4}[/tex]

[tex]\ln{e^{-0.4t}} = \ln{\frac{0.9}{62.4}}[/tex]

[tex]-0.4t = \ln{\frac{0.9}{62.4}}[/tex]

[tex]t = -\frac{\ln{\frac{0.9}{62.4}}}{0.4}[/tex]

[tex]t = 10.6[/tex]

It will take 10 days before 100,000 people are infected.

A similar problem is given at https://brainly.com/question/25609786

Determine if the ordered pairs represent a function.

{(1,5), (2,7), (3,9), (4,7)}


(yes or no)​

Answers

Answer: No

Step-by-step explanation:

There's no noticeable pattern.

how many sixteenths are there in 1\4

Answers

Answer:

There are 4 sixteenths in one-fourth

Step-by-step explanation:

how many sixteenths are there in 1\4?

There are 4 sixteenths in one-fourth

1/4 : 1/16 =

1/4 * 16 =

4

Use approximations to 1 significant figure , check that your answer to part A ) makes sense

Answers

10,000 x 600
———————. = 600000
10

Ivan is curious if he can run faster than a rabbit.



He runs `90` feet in `5` seconds. The average rabbit can run at a speed of `35` feet per second.



Is Ivan faster than the rabbit?

Answers

Answer:

Step-by-step explanation:

Speed of rabbit per second = 35 ft

Ivan:

Speed in 5 seconds = 90 ft

Speed in 1 second = 90 ÷ 5 = 18 ft

No, Ivan is not faster than rabbit.

2. What is the probability that the third strike comes on the seventh well drilled?

Answers

Answer:

about a 5% chance

Step-by-step explanation:

That is, there is about a 5% chance that the third strike comes on the seventh well drilled.

Solve for x
6(x+6)=4x−2

Answers

Answer:

x = -19

Step-by-step explanation:

6x + 36 = 4x - 2

6x + 36 - (4x - 2) = 4x - 2 - (4x - 2)

2x + 38 = 0

2x = -38

x = -19

solve for x.
6(x+6)=4x-2
x=-19

The price of a watch was $115 when it was launched last year. When a new version of the watch was released this year, the price of the earlier version of the watch decreased by 15%. Find the price of the earlier version of the watch this year.​

Answers

Answer:

$97.75

Step-by-step explanation:

115 times 0.85

Alexa used some ribbons to make 4 headbands and a bracelet. She used 4.95 cm of ribbon for each head band and 4.24 cm for the bracelet. How many centimeters of cloth did she use altogether?​

Answers

Answer:

24.04 cm

Step-by-step explanation:

each headband uses 4.95cm and each bracelet uses 4.24cm.

4 headbands * 4.95 cm = 19.8cm

1 bracelet * 4.24 cm = 4.24 cm

19.8 cm + 4.24 cm = 24.04 cm

If X || Y and Y || Z, then

Answers

Answer:

X || Z

Step-by-step explanation:

Step-by-step explanation:

well, what does your own logic tell you ? just think logically.

of course it is X || Z.

what else could it be ?

this is similar to questions like

if A > B, and B > C, then what does that say about A and C ?

right, A > C.

same thing for A=B, B=C, then A=C.

but it does not work with every relationship. so, be careful and just use basic logic - but that you will have to use.

aolve the equation. 3/4x+3-2x = -1/4+1/2x+5

Answers

X would equal up to -1

Calculaţi c.m.m.d.c. și c.m.m.m.c. al numerelor: 18; 120; 30; 450.​

Answers

anser is

Step-by-step explanation:

618 is the answer

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