2 years ago

Suppose y varies inversely as x. if x =-13 and y =100, find y when x = 5

1 answer:

7 0

The equation for an inverse or indirect variation is y = k/x. Fill in those value to first solve for k: 100=k/-13. Multiply both sides by -13 to get that k = -1300. Now use that k and the x value of 5 to solve for y: y = -1300/5. Divide that out to get that y = -260

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