Problema Solution
A gas station sells a total of 4500 gallons of regular gas and premium gas in one day. The ratio of gallons of regular gas sold to gallons of premium gas sold is 7 : 2.
write a system of linear equation that represents this situation.
Answer provided by our tutors
let
x = gallons of regular gas sold
y = gallons of premium gas sold
A gas station sells a total of 4500 gallons of regular gas and premium gas in one day:
x + y = 4500
The ratio of gallons of regular gas sold to gallons of premium gas sold is 7 : 2:
x : y = 7 : 2 cross multiply
2x = 7y
2x - 7y = 0
the system of linear equation that represents this situation is:
x + y = 4500
2x - 7y = 0