Question

If 102y = 25, then 10-y equals:

Answer 1

Step-by-step explanation:

10y2=25

(10y)2=(5)2

10y=5

1/10y=1/5

10y=1/5

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Answer 2

Step-by-step explanation:

102y = 25

y = 25/102

y = 0.245

So

10 - y = 10 - 0.245

=9.755