Teresa runs 4 miles in 23 minutes. How many minutes does she take per mile?

1 Answer
SCooke
Mar 4, 2018

#5.75"minutes"/"mile"#

Explanation:

Word problems with phrases like "something in something" are usually ratios. "minutes in miles" is expressed in math as
#"minutes"/"miles"#

Now you can see that if you just put the values given into the expression, you will get a result "unified" to the units - #"minute"/"mile"#

#(23" min")/(4" mile") = 5.75"minutes"/"mile"#

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