Question 500796
Assume,   miles can be driven for 3 days = x
Given
Car rent/day = 23
Rent of three day = 3 * 23 = 69
For a mile we needed to pay = 2.5
Total rent for driving x miles = 2.5(x) 
Total amount paid = 150
Total rent for driving x miles + Rent of three day =  Total amount paid
2.5(x)+69=150
2.5(x)=150-69
2.5(x)=81
Divide by 2.5 both sides of the equation
2.5(x)/2.5=81/2.5
x=32.4

32.4 miles can be driven for 3 days.