A family has two cars. During one particular week, the first car consumed 30 gallons of gas and the second consumed 25 gallons of gas. The two cars drove a combined total of 1700 miles, and the sum of their fuel efficiencies was 60 miles per gallon. What were the fuel efficiencies of each of the cars that week?

Question

anonymous · Answer

x= speed of car 1 or fuel efficiency of car 1
y= speed of car 2 or fuel efficiency of car 2
30x= distance car 1 drove
25y= distance car 2 drove
1700= total distance the 2 cars drove

anonymous · Answer

yes
and the sum of the fuel efficiency = 60