There are 88 keyes on a piano. some keys are black and some keys are white .
if x represents t...
Mathematics, 16.09.2019 14:30 amontes189
There are 88 keyes on a piano. some keys are black and some keys are white .
if x represents the number of white keys which expression below represents the number of black keys ? ?
a: x-88
b: x+88
c: 88-x
d: 88/x
Answers: 1
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