Question 720020
On Monday, Amy cycled 24 miles in 2 hours at a constant rate. On Tuesday, she cycled at an average of 3 mph faster. What was her rate on Tuesday? 
I tried 24 miles/2 hrs= 12 mph
So rate on Tuesday = 12+3=15 mph
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Cheers,
Stan H.
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My choices are:
A. 3 mph 
B. 15 mph 
C. 30 mph 
D. 120 mph