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Liz and Jose rode there bikes into the country at a rate of 12 miles per hour. They return on the same route but since they are now tired, they slow down and maintain an average speed of 8 miles per hour. If their whole ride took 10 hours, how much distance did they cover?
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hours in one direction and hours back.
In all 10 hours.
An equation is
= .
To solve it. multiply both sides by 24. You will get
2L + 3L = 240,
5L = 240,
L = = 48 miles.