NakaiQ564424 NakaiQ564424

25-10-2022
Mathematics

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If y varies directly with x and y=12when.x=9 what is the value of x when y=36?

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DaphanieQ192052 DaphanieQ192052

25-10-2022

y varies directly with x

y=kx

y=12, x=9

12=k9

Solve for k:

12/9 =k

y= 12/9x

For y=36

36 = 12/9 x

Solve for x:

36 /(12/9)= x

27=x

x=27

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