SOLUTION: Car 1 gets 25 mph and car 2 gets 35mpg. One week they combined 2135 miles. How many gal were used by each car? Is it 42.7 and 30.5?

Question 867495: Car 1 gets 25 mph and car 2 gets 35mpg. One week they combined 2135 miles. How many gal were used by each car? Is it 42.7 and 30.5?
Answer by josgarithmetic(39618) (Show Source): You can put this solution on YOUR website!
d is miles, v is gallons of fuel, these may form a constant, a rate, miles per gallon. This is a uniform rates arrangement expressable as .

Let x and y be unknown gallons of fuel volume,

Which Car___________Fuel Efficiency________gallons________distance
Car 1__________________25__________________x______________25x
Car 2__________________35__________________y______________35y
Total_____________________________________________________2135

I am wondering if something is missing in the problem description. The fuel volume used of both cars are unknowns. Both of their distances separately also unknowns.
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