Problema Solution
Two cars get an oil change at the same service center. Each customer is charged a fee x(in dollars) for the oil change plus y dollars per quart of oil used. The Honda Accord requires 5 quarts of oil for a total of $22.45. The Honda Element requires 7 quarts of oil for a total of $25.45. Find the fee and cost per quart of oil.
Answer provided by our tutors
The Honda Accord oil changes for 5 quarts costs
x + y*5 = 22.45
The Honda Element oil changes for 7 quarts costs
x + y*7 = 25.45
We need to find x and y that is solve the following system of equations
x + y*5 = 22.45
x + y*7 = 25.45
x = $14.95
y = $1.5
The fee for the oil change is $14.95 plus $1.5 per quart of oil used.