SOLUTION: Martha rode 40 miles in 30 minutes. At this rate, how long will it take Martha to ride 100 miles?

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Question 950726: Martha rode 40 miles in 30 minutes. At this rate, how long will it take Martha to ride 100 miles?
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
Set up a ratio.
40 miles is to 30 minutes as 100 miles is to X minutes.
40%2F30=100%2FX
40X=3000
X=3000%2F40
X=75min