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frez [133]
3 years ago
12

Jordan drives to the store at 30 miles per hour. On her way home she averages only 20 miles per hour. If the total driving time

takes half an hour how far does she live from the store?
Mathematics
1 answer:
cupoosta [38]3 years ago
8 0

Answer:

Jordan lives 18 miles away from the store

Step-by-step explanation:

Distance=speed × time

Where,

d= distance

s= speed

t= time

Total driving time takes half an hour

Distance=speed × time

time=Distance/speed

t=1.5

Speed 1=30 mph

Speed 2:=20 mph

t=d/s1 + d/s2

1.5=d/30 + d/20

1.5=20d + 30d / 600

1.5=50d/600

Cross product

1.5×600=50d

900=50d

Divide both sides by 50

900/50=d

18=d

Therefore,

d=18 miles

Jordan lives 18 miles away from the store

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