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wolverine [178]
3 years ago
11

HELP Eric's mother drives to work in 20 min when driving at her usual speed. When traffic is bad, she drives 10 miles per hour s

lower, and the trip takes 10 minutes longer. What is Eric's mother's usual speed?
Mathematics
2 answers:
gogolik [260]3 years ago
6 0

Answer:

30

Step-by-step explanation:

I could be wrong

WITCHER [35]3 years ago
5 0

Answer:

30

Step-by-step explanation:

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