toris family is leaving for a camping trip in the morning. marshall meadows, where they will camp, is 325…
toris family is leaving for a camping trip in the morning. marshall meadows, where they will camp, is 325 miles away. toris parents plan to drive for 3 hours in the morning, then stop for lunch. they will complete the trip in the afternoon. they expect their average speed will be 50 miles per hour. how many hours will they drive in the afternoon? write your answer as a whole number or a decimal.
Answer
Explanation:
Step1: Calculate morning - drive distance
Use formula $d = vt$, where $v = 50$ mph and $t = 3$ hours. So $d_{morning}=50\times3 = 150$ miles.
Step2: Calculate afternoon - drive distance
Total distance $D = 325$ miles. So $d_{afternoon}=325 - 150=175$ miles.
Step3: Calculate afternoon - drive time
Use formula $t=\frac{d}{v}$, with $d = d_{afternoon}=175$ miles and $v = 50$ mph. So $t_{afternoon}=\frac{175}{50}=3.5$ hours.
Answer:
$3.5$