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18-01-2017
Mathematics

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Y varies directly with x, and y = 120 ib when x = 50 ib. Find y if x = 40 ib

Respuesta :

18-01-2017

y = kx is the direct variation equation.
Use the x and y given to find k. After finding k use it to write a new equation.
120=k*50
Divide by 50 on both sides
120/50=k 12/5=k
y = (12/5)(40) y=96

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