4 years ago

Suppose d and c vary inversely, and d=2 when c=17. Write and equation that models the variation.

Mathematics

1 answer:

gogolik [260]4 years ago

4 0

D = k/c
2 = k/17
k = 2 x 17 = 34

Required equation is d = 34 / c

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What is the solution set? −9.5x−1.5>−30<br> x= ?

Alborosie

Hi there!

x > 0.073171.
Why?

First to solve we need to add 30x to both sides of the inequality.

-9.5x - 1.5 + 30x > -30x + 30x
20.5x - 1.5 > 0

Next we need to add 1.5 to both sides.

20.5x - 1.5 + 1.5 > 0 + 1.5
20.5x > 1.5

Finally, divide both sides by 20.5.

20.5x/20.5 > 1.5/20.5

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So our answer is x > 0.073171.

Hope this helps!

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