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Mathematics 20 Online
OpenStudy (anonymous):

If y varies directly as x and y = 14 when x = 8, find x when y = 21.

OpenStudy (anonymous):

HEEEEEEELLLLLLLLPPPPPPP!!!!!!

OpenStudy (anonymous):

If y varies directly as x it means: \[y = kx\] Where k is proportionality constant..

OpenStudy (anonymous):

Now : y = 14 and x = 8. By plugging these values in, find k first...

OpenStudy (anonymous):

Then you will have k = Something you have founded.. You have then y = 21 and now find x..

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