brianna8739
20.09.2020 •
Mathematics
A person who is 50m from a taxi parked on the avenue runs with a constant speed of 3.7 m/s to reach it, but when 2.5 s have lapsed, another man who is 30m from the same vehicle gets ready to reach it by accelerating to 0.4m/s2. Which of the 2 men will arrive first at the taxi?
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Ответ:
9514 1404 393
$35 per hour
Step-by-step explanation:
The total charge is the sum of costs of parts and labor. If h is the cost of a labor hour, then we have ...
188.75 = 75 + 3.25h
113.75 = 3.25h . . . . . . . . subtract 75
113.75/3.25 = h = 35 . . . divide by the coefficient of h
The cost of labor, per hour, is $35.