car x = 30 mpg
car y = 25 mpg
x = 45 - y
30x + 25y = 1275
30(45-y) + 25y = 1275
Solve for y, then x.
A family has two cars. The first car has a fuel efficiency of
30
miles per gallon of gas and the second has a fuel efficiency of
25
miles per gallon of gas. During one particular week, the two cars went a combined total of
1275
miles, for a total gas consumption of
45
gallons. How many gallons were consumed by each of the two cars that week?
4 answers
Got it. Thank you
Welcome
can you do the same question but with a combined total of 1250 miles