If y varies inversely as x and y = 139 when x = –12, find y when x = 4. Round your answer to the nearest hundredth, if necessary.

-417

Step-by-step explanation:

Two variables x,y are inversely proportional to  each other when there exists a relationship between them as follows:

So, the product of the two variables is constant.

In this problem, at the beginning we have:

x = -12

y = 139

So, the  value of the constant product of the two variables is

Now we can find the value of y when

x = 4

In fact, using again the original equation and re-arranging it, we have:

step-by-step explanation:

it will be a cylinder. with a diameter of 8 and 4 single pieces high

on monday rodney ate 1/4th of the sandwich = 3/12

on tuesday he ate 1/3rd of the sandwich = 4/12

therefore in total he has eaten = 3/12 + 4/12 = 7/12

thus we can say that he has eaten 7/12 of the sandwich on monday and tuesday alltogether.

happy to

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