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TEA [102]
3 years ago
12

Nancy and Karen went on a trip to the mountain. Nancy started her trip 30 minutes later than Karen. They started from the same p

lace and reached the mountain at the same time, 1 1/2 hours after Karen started. If Nancy's average speed was 50 miles per hour find Karen's speed, rounded to the nearest tenth miler per hour.(PLEASE SHOW STEPS!
Mathematics
1 answer:
Katyanochek1 [597]3 years ago
3 0
Distance = (rate)(time)
In this problem, note that both girls traveled the same distance.

Karens distance = r * 1.5 hrs          we dont know her rate
Nancy distance = 50 * 1 hr              we know she started 30 min later
                                                         but arrived at the same time

since the distances are equal
r*1.5 = 50 * 1          all you have to do is solve for r

1.5r = 50
r = 50/1.5
r = 33 1/3 miles per hour
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