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Glenn drove 20 miles in 2/5 hour. The equation 2/5r=20 can be used to find his average rate of speed r in miles per hour. What was Glenn's average rate of speed?

Glenn drove 20 miles in 2/5 hour. The equation 2/5r=20 can be used to find his average rate of speed r in miles per hour. What was Glenn's average rate of speed?
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Glenn drove 20 miles in 2/5 hour. The equation 2/5r=20 can be used to find his average rate of speed r in miles per hour. What was Glenn's average rate of speed?

User Aaafly
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If I am doing and understanding this right I believe the answer would be 8 mph because 2/5 times r which is 20 equals 8.
User Jon Rimmer
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