28-05-2015
Mathematics

Answered

zalmon walks 3/4 of a mile in 3/10 of an hour. What is his speed in miles per hour?

Answer :

cclemeno cclemeno

28-05-2015

first change 3/10 of an hour to minutes
3/10 x 60= 18 minutes
also change 3/4 to .75 to eliminate the fraction
ratio and proportion
.75 mi/18 minutes= x miles/60 minutes
cross multiply
18x=45
x=2.5 miles per hour

hope this helps

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