SOLUTION: Suppose x varies directly with y. a. Use the fact that x=-114 when y=38 to find the constant of variation and to write the equation of variation. b. Find the value of x when y

Algebra ->  Expressions-with-variables -> SOLUTION: Suppose x varies directly with y. a. Use the fact that x=-114 when y=38 to find the constant of variation and to write the equation of variation. b. Find the value of x when y      Log On


   

Question 1065829: Suppose x varies directly with y.
a. Use the fact that x=-114 when y=38 to find the constant of variation and to write the equation of variation.
b. Find the value of x when y=31.
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
Suppose x varies directly with y.
x = k/y
Solve for "k" using the fact that x=-114 when y = 38 to find the constant of variation and to write the equation of variation.
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-114 = k/38
k = -4332
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b. Find the value of x when y=31.
x = -4332/31
x = 139.74..
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Cheers,
Stan H.
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