4 years ago

Write a real-world problem given the equation 2/3x = 12. Then solve the equation.

1 answer:

4 0

Answer:

You want to buy long pieces of paper at Dollar Tree for 66 cents. You have $12. How many long pieces of paper can you buy

Step-by-step explanation:

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What is the exact volume of the cylinder?

rewona [7]

128pi in^3

because:
Volume = Area of the base * height
Volume= pi*r^2*height
= pi4^2 * 8
= 128pi

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2 years ago

Whats 9x-6-13x=94? how do you do it?

rewona [7]

9x-6-13x=94

-4x-6=94

-4x=100

x= -25

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3 years ago

2r2 + 3s3 − r2 + 4t2 − r2 if r = −2, s = −3, and t = 5.

Elza [17]

First, simplify the expression $2r^2 + 3s^3 - r^2 + 4t^2 - r^2.$ Here you have three terms with $r^2,$ group them in the following way:

$2r^2 + 3s^3 - r^2 + 4t^2 - r^2=2r^2-r^2-r^2+3s^3+4t^2=(2r^2-r^2-r^2)+3s^3+4t^2=$

$=r^2(2-1-1)+3s^3+4t^2=3s^3+4t^2.$

Then substitute s=-3 and t=5:

$3s^3+4t^2=3\cdot (-3)^3+4\cdot 5^2=3\cdot (-27)+4\cdot 25=-81+100=19.$

Answer: 19.

3 0

3 years ago

Read 2 more answers

Hurry please <br>if 2w+13=4w-7<br>and they both equal 180<br>what is w

Gennadij [26K]

If you work out the equation the answer would be 5 but its not a definite answer.

7 0

3 years ago

The cost for n students to attend a workshop is 7n+12 dollars. What is the cost,in dollars for students to attend?

kakasveta [241]

You would divide both 12 and 7n by 7. To isolate the variable. You end up with 5+n. You can not say 5n because you cannot combine unlike terms. Your answer would be 5+n. Hope this helps

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3 years ago