Marcelo runs 3/4 of a mile in 1/8 of an hour. What is his unit rate in miles per hour?
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Using cross multiplication method,
x -12 -12x
x 2 2x
Therefore,
=3(x-12)(x+2)
Using cross multiplication method,
x -12 -12x
x 2 2x
Therefore,
=3(x-12)(x+2)
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