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Solve for z. 27/90=15/z

1 Answer

4 votes

Answer:

z= 50

Explanation:

The equation 27/90=15/z can be written as the following if we simplify a little:

3/10=15/z.

remember 27=3*9 and 90=9*10, hence 27/90=3/10

Now lets multiply both sides by variable 'z'.

we have 3/10 * z= 15/z * z

3/10 z=15

Now lets multiply by 10/3

3/10 * z * 10/3 = 15*10/3

z= 50

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