Homework Help: Math

Posted by Lily on Wednesday, September 17, 2008 at 8:34pm.

Murphy’s motorcycle gets 55 miles per gallon of gas on the highway and 45 miles per gallon in the city. The motorcycle holds 8 gallons of gas. Write and simplify an expression for the total number of miles Murphy can travel if he has a full tank of gas but uses 2 gallons on the highway and the rest in the city.

Math - drwls, Wednesday, September 17, 2008 at 8:40pm
Let X be the total number of miles Murphy can travel on that tank of gas.
If he uses 2 gallons on the highway, then 8-2 = 6 gallons are used in the city.

The total miles travelled on the tank is
X= 55*2 + 45*6 = ?
Math - Anonymous, Wednesday, May 30, 2012 at 4:06pm
x=55*2+45*6=380

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