Problema Solution
Mr. Handler bought a second-hand car. After driving for 5 hours, the odometer reads 21,800 miles. After driving for 9 hours, the odometer reads 28,700 miles. What was the odometer reading when Mr. Handler bought the car?
Answer provided by our tutors
let
x = the odometer's reading when the car was bought
m = the number of mile the car makes after driving for 1 hour
After driving for 5 hours, the odometer reads 21,800 miles
x + 5m = 21800
After driving for 9 hours, the odometer reads 28,700 miles
x + 9m = 28700
by solving the system of equations
x + 5m = 21800
x + 9m = 28700
we find
x = 13,175 mi
click here to see the step by step solution of the system of equations
When Mr. Handler bought the car the odometer's reading was 13,175 miles.