Three pens and three notebooks cost $6.90. Two notebooks and one pen cost $4.10

Answers

Answer 1

Answer:

so whats the question then?

Step-by-step explanation:


Related Questions

Factor 72x−18xy
Find the Factor of 72x-18xy

Answers

Answer:

4x and (1-y)

Step-by-step explanation:

4x(1-y)

this is my answer

The factors of the expression are 18x and 4-y

Given the expression 72x - 18xy

Find the factor of each term:

72x = 18 * 4 * x

18xy = 18 * x * y

Since 18x is common to both terms, hence the factored form is expressed as:

72x - 18xy = 18x (4 - y)

The factors of the expression are 18x and 4-y

Learn more on factors here: https://brainly.com/question/24539261

PLEASE HELP IT IS EASY!!!!!!!!!!!!!! I HAVE AN EXAM!!!!!!!!!!!!!!! A student took 75 minutes to answer a combination of 30 multiple-choice and extended-response questions. She took 2 minutes to answer each multiple-choice question and 5 minutes to answer each extended-response question.

Determine which two equations best represent the situation given that R represents the number of extended-response questions and M represents the number of multiple-choice questions.
Determine the number for each type of question on the test.

Answers

Answer:

M+R=30

2M+5R=75

R=5

M=25

Step-by-step explanation:

-2(M+R=30)

2M+5R=75

-2M-2R=-60

2M+5R=75

__________

3R=15

R=5

2M+5(5)=75

2M+25=75

2M=50

M=25

If a = 3, what is the value of 2a^2

Answers

Answer:

18

Step-by-step explanation:

2(3)^2

2(9)

18

Answer:

The answer is 18.

Step-by-step explanation:

2a²

2(3)²

2(9)

18

Tim bought a washing machine for a total of $651 with tax included. What was the price of the washing machine before tax if Tim lives in an area with an 8.5% sales tax rate?

Answers

Answer:

The washing machine cost $600 before tax

Step-by-step explanation:

Percentages

The washing machine cost $651 including a tax of 8.5%.

If x was the cost of the washing machine before tax, then the tax was:

x*8.5/100 = 0.085x

It was added to the original price:

x + 0.085x = 1.085x

That is the final price, thus

1.085x=$651

Solving:

x = $651/1.085

x = $600

The washing machine cost $600 before tax

259 Students go on a field trip. There are 19 vehicles, some vans and some buses.

7 students can fit in a van, and 25 students can fit in a bus.
how many buses were there?
how many vans were there?

Answers

7 buses, 12 vans

Explanation:
12 vans, 7 Buses
7 x 25 = 175
12 x 7 = 84

175 + 84 = 259

ASAP ASAP ASAP ASAP. PLS PLSPLS

Answers

First you wanna add the y plus 3 equals 4 minus 5

2 3 4 5 6 7 8 9 10
TIME REMAINING
41:13
The Bears have won 7 and tied 2 of their last 13 games. They have not forfeited any games. Which ratio correctly compares their wins to losses?
7:13
13:7
4:7
7:4

Answers

The Answer Will Be 7:4

A salesperson at a jewelry store earns 8% commission each week. Last week, Heidi sold $530 worth of jewelry. How much did she make in commission? How much did the jewelry store make from her sales?

Answers

Answer:

she made $42.40

the store made $487.60

Step-by-step explanation:

530 x .08

Please help the question is in the photo

Answers

Answer:

SSS or SAS

Step-by-step explanation:

What's the value of x? 4 (x - 6) + 6 = 6x - 6

Answers

Answer:

x=-6

Step-by-step explanation:

Answer:

I got X = -6 hope I'm right

Answer and ill mark brainlist!!

Answers

Answer:

the slope is 1

Step-by-step explanation:

X is the slope . Ye :)
Full equation is y=x+4

1.25 × 109 + 3.50 × 109 + 3.25 × 109 =

Answers

Answer:

872 is the final answer

Step-by-step explanation:

Answer: The answer is 872

Step-by-step explanation:

7.
After determining the number of T-shirts and caps to purchase, the senior
class officers forgot to include shipping costs. The fabric textile company
charges shipping and handling fees according to the number of T-shirts and
caps purchased
One of the class officers writes the function f(n) = 20n + 275, where n is the
number of T-shirts purchased, and f(n) is the amount of money available to
spend on caps.
Which description does 20 represent in the class officer's function? Select all
that apply.
A. the shipping cost
B. the cost per T-shirt
C. the rate of change in the graph
D. x-intercept
Ey-intercept

Answers

Answer:

B

Step-by-step explanation:

60% of 89 is what number?

Answers

It’s 53.4 hope this helps

Answer:

53.4

Step-by-step explanation:

PLEASE HELP ILL GIVE THE BRAINLEST FOR THE RIGHT ANSWER

graph y= -1/2-6

Answers

Just use the -6 as y-axis and go one down, two to the right if u mean the equation to be -1/2x-6

-5x + 4y = 3
x = 2y - 15
solve for x and y
I'm failing please send help

Answers

Answer:

Let's solve for x.

−5x + 4y = 3

Step 1: Add -4y to both sides.

−5x + 4y+ −4y =3+ −4y

−5x = −4y +3

Step 2: Divide both sides by -5.

-5x divided by 5 = -4y+3 divided by -5

x=4/5y + −3/5

Step-by-step explanation:

what is "The temperature outside at 6 a.m. is 4 degrees celsius. The temperature rising by 1.5 degrees celsius every hour." in a mathematical equation!! please help

Answers

Answer:

7 a.m is 5.5

Step-by-step explanation:

(6=4)+1.5=(_+1.5)

make a T chart

thats how it should work for you

Say the fraction in decimal form. 1/10

Answers

The fraction is decimal form is 0.1

Answer:

0.1

Step-by-step explanation:

Please mark me brainleist

more of my math lesson plz help guyssss

Answers

-11.3 this is easy u don’t know?

Solve the inequality − 3 x + 6 > 15

Answers

Answer:

The Answer to your question is x<-7 Hope This could Help

Step-by-step explanation:

Answer:

x<−3

Step-by-step explanation:

Let's solve your inequality step-by-step.

−3x+6>15

Step 1: Subtract 6 from both sides.

−3x+6−6>15−6

−3x>9

Step 2: Divide both sides by -3.

−3x/−3>9/−3

pls mark as brainliest

plz helppp
Analyze the diagram below and complete the instructions that follow. Find the value of x and the value of y
A. x=15, y= 10 √3
B. x=20, y= 10 √3
C. x=20 √3, y= 5 √3
D. x=15, y= 5 √3

Answers

Answer:

Use the SOH CAH TOA

Step-by-step explanation:

Angle = 60°

x = opposite o

y = adjacent a

10√ 3 = hypotenuse h

To find x we use SOH {sineø = o/h}

Sin 60° = x/10√ 3

x=10√ 3 * sin 60

X=15

You can use Pythagoras theorem or CAH{cosø = a/h}

Cos 60°= y/10√ 3

y=Cos 60° * 10√ 3

y=5√ 3

People at the state fair were surveyed about which type of lemonade they preferred. The results are shown below:

Pink Lemonade: 156 males, 72 females
Yellow Lemonade: 104 males, 48 females

Answers

Answer

Step-by-step explanation:

You would require the table with the number of males and females who prefer either pink or yellow lemonade at the state fair.

                     Pink Lemonade         Yellow Lemonade       TOTAL

Male                    156                                104                          260

Female                  72                               48                          120

TOTAL                 228                               152                         380

P(pink lemonade | female) = 72 / (48 + 72) = 72 / 120 = 0.6

P(pink lemonade) = (156 + 72) / (156 + 72 + 104 + 48) = 228 / 380 = 0.6

Therefore, The event "prefers pink lemonade" and "female" are independent because P(pink lemonade | female) = P(pink lemonade) = 0.6

Independents events are events that can happen independently on their own. Events A and B are independent if P(A|B) = P(A).

The "prefer pink" event and "female" event are independent because [tex]P(P|F) = P(P) = 0.6[/tex]

To do this, we make the following representations:

[tex]P \to[/tex] Pink Lemonade

[tex]Y \to[/tex] Yellow Lemonade

[tex]M \to[/tex] Male

[tex]F \to[/tex] Female

The "prefer pink" event and "female" event are independent if:

[tex]P(P|F) = P(P)[/tex]

[tex]P(P|F) \to[/tex] the probability that a selected person prefers pink provided that the person is female

[tex]P(P) \to[/tex] the probability that a selected person is female

P(P| F) is calculated as:

[tex]P(P| F) = \frac{n(P\ n\ F)}{n(F)}[/tex]

i.e. the number of females who prefers pink divided by the number of females

From the table, we have:

[tex]n(P\ n\ F) = 72[/tex]

[tex]n(F) = 72 + 48 =120[/tex]

So, the probability is:

[tex]P(P| F) = \frac{72}{120}[/tex]

[tex]P(P| F) = 0.6[/tex]

[tex]P(P)[/tex] is calculated as:

[tex]P(P) = \frac{n(P)}{Total}[/tex]

i.e. the all people who prefer pink divided by total number of people

From the table, we have:

[tex]n(P) = 156 + 72 = 228[/tex]

[tex]Total = 156 + 72 + 104 + 48 = 380[/tex]

So, the probability is:

[tex]P(P) = \frac{228}{380}[/tex]

[tex]P(P) = 0.6[/tex]

Recall that:

The "prefer pink" event and "female" event are independent if:

[tex]P(P|F) = P(P)[/tex]

And we have:

[tex]P(P| F) = 0.6[/tex]

[tex]P(P) = 0.6[/tex]

Hence, the events are independent because:

[tex]P(P|F) = P(P) = 0.6[/tex]

Option (a) is correct

Read more about independent events at:

https://brainly.com/question/12543071

PLS HELPPPPP

This is due today....

Answers

Answer:

its B becuase the exspresion of it is the hours of the 16 like 8 16 like that

Step-by-step explanation:

(10 points) only answer section b plz

Answers

First, fifth, and sixth are correct!

3. a) The dimensions of your game cover are 20 cm x 15 cm. However, you need to have a strip of
constant width around the border for labeling purposes (game console type, etc). This width will
take up 32% of your game cover's total space. What is the width of the border? Make sure to
state any values that don't make sense.

Answers

20cm×15 cm =300

32

/100 = 0.32

9514 1404 393

Answer:

  1.5 cm

Step-by-step explanation:

All areas are in cm^2. For a width w, the border will have an area equal to the product of its centerline length and its width:

  border area = 2((20-w) +(15-w))·w = w(70 -4w)

This area is 32% of the total cover area, so is ...

  0.32(20)(15) = 96

Equating these expressions for the area gives ...

  96 = 70w -4w^2

  w^2 -17.5w = -24 . . . . . divide by -4

  w^2 -17.5w +8.75^2 = -24 +8.75^2 . . . . . complete the square

  (w -8.75)^2 = 52.5625 . . . . simplify

  w -8.75 = ±√52.5625 = ±7.25

A border width only makes sense if it is between 0 and 7.5 cm, so the appropriate value for w is ...

  w = 8.75 ± 7.25 . . . . . . . . . add 8.75

  w = 8.75 -7.25 = 1.50 . . . . . the solution w=16 makes no sense

The border width is 1.5 cm.

The entrance to our school has a height of 10.5 feet. There are approximately 30.5 centimeters in 1 foot. What is the height of the entrance in centimeters?​

Answers

Answer:

320.25 centimeters

Step-by-step explanation:

you multiply 10.5 * 30.5

What's the pattern 7,19,31,43

Answers

Answer:

It’s 7, 19, 31, 43


Explanation:

You already have it.
+12 each time
7+12=19
19+12=31
31+12=43

A local coffee house donates 2 pounds of
gourmet coffee beans to be sold at a local
fundraiser. The people running the fundraiser
decide to package and sell the coffee beans
in pound packages. How many pound
packages can they make

Answers

Answer:

They can make 2

Step-by-step explanation:

The coffee shop donated 2lbs, and if they package it in 1lb bags, 2/1=2

Question
Solve the equation. Enter the answer in radical form, and then use a calculator to approximate the
solution to two decimal places, if necessary. Use a graphing calculator to graph the related function to
check your answer.
5x2 - 16 = 29
The solutions are x =
and x-

Answers

Answer:

solving the equation [tex]5x^2 - 16 = 29[/tex] we get the solution: [tex]\mathbf{x=3,x=-3}[/tex]

Step-by-step explanation:

We need to solve the equation [tex]5x^2 - 16 = 29[/tex]

We need to solve the equation to find the value of x.

We can solve this equation using simple DMAS rule.

We are given:

[tex]5x^2 - 16 = 29[/tex]

Add 16 on both sides

[tex]5x^2 - 16+16 = 29+16\\5x^2=45[/tex]

Now, divide both sides by 5

[tex]\frac{5x^2}{5}=\frac{45}{5} \\x^2=9[/tex]

Now, we know that [tex]\sqrt{x^2}=\pm x[/tex]

Taking square root on both sides.

[tex]\sqrt{x^2}=\sqrt{9}\\x=\pm3[/tex]

So, we get values of x:

[tex]x=3, x=-3[/tex]

Therefore, solving the equation [tex]5x^2 - 16 = 29[/tex] we get the solution: [tex]\mathbf{x=3,x=-3}[/tex]

Evaluate the following numerical expression.

6 + 2^3 • 3 =

Answers

Answer:

30

Step-by-step explanation:

2^3=8

8x3=24

24+6=30

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