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4 years ago

If x varies directly as y and x=3 when y = 8, find the value of y when x=9

Mathematics

1 answer:

padilas [110]4 years ago

3 0

Answer: Y =24

Step-by-step explanation:first get the constant. X=KY substituting x and y in the equation is 3=K8 Therefore K = 3/8 =0.375

If x is 9 find y when the constant k is 0.375 from the equation x=ky

Is Y = X÷K is 9÷0.375 =24.

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Using the property, log(ab) = log(a) + log(b), we can simplify the right hand side, and the left side simply will cancel down to 6x.

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Isolate the variable to solve directly for x.
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