Mschlagel Mschlagel

10-01-2017
Mathematics

contestada

If y varies directly with x and y = -7 when x = -1, find x when y = -84.

Respuesta :

TrueHufflepuff TrueHufflepuff

10-01-2017

set up the problem like this:
y1/x1 = y2/x2
-7/-1 = -84/x2
then use cross multiplication to solve the problem

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