Question

Need help with these two questions.

Answer 1

Circumference varies directly with radius means:

`(C)/(r) = k`

`(9.42)/(1.5) = k`

6.28 = k

So, the new equation is:

`(C)/(r) = 6.28`

`(C)/(9) = 6.28`

`(9)(C)/(9) = (9)6.28`

C = 56.52

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paycheck varies directly with hours means:

`(P)/(h) = k`

`(52.50)/(6) = k`

8.75 = k

So, the new equation is:

`(P)/(h) = 8.75`

`(P)/(11) = 8.75`

`(11)(P)/(11) = (11)8.75`

P = $96.25