Question 873482
1. For every person who walked there were 44 who drove. If 270 made the trip, how many walked?
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Equation:
x + 44x = 270
45x = 270
x = 6 (# who walked)
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2. Jenna pedaled the 24 miles to the lake against the wind and averaged 8 miles per hour on the return trip she averaged 12 miles per hour. Find Jenna's average speed for the round trip.
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To Lake DATA:
dist = 24 miles ; rate = 8 mph ; time = 24/8 = 3 hrs
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From Lake DATA:
dist = 24 miles ; rate = 12 mph ; time = 24/12 = 2 hrs
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Average speed = total distance/total time = 48 miles/5 hrs = 9.6 mph
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Cheers,
Stan H.
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