Consider the equation z=Ay, where A is a constant number. Initially the variables have the values...

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Consider the equation z=Ay, where A is a constant number. Initially the variables have the values...

Consider the equation z=Ay, where A is a constant number. Initially the variables have the values y1 and z1. Then a change occurs, and the final values of the variables are y2 and z2.

z2 = 48.9

y2 = 7.5

z1=27.5

what is y1?

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