Sergio went to the coffee shop traveling 10mph and returned home traveling 25mph. If the total trip took 7 hours, how long did Sergio travel at each speed?
Added by Derrick B.
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According to the given information, the total trip took 7 hours. So, we can write the equation: x + y = 7 (equation 1) We also know that the distance traveled at a constant speed is equal to the product of the speed and time. So, we can write the equation for Show more…
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