Question 196871
Car dealer (A) will rent a compact car for $40 per day and an additional charge
 of $0.20 per mile. Car dealer (B) will charge only $0.16 per mile but charges
 $51 per day. If Adam wanted to rent a car for four days, how many miles would
 Adam have to drive to make car rental agency B a better bargain?
:
Let m = no. of miles
:
Dealer A for 4 days equation:
Cost A = .20m + 4(40)
Cost A = .20m + 160
:
Dealer B for 4 days equation
Cost B = .16m + 4(51)
Cost B = .16m + 204
:
Cost A > Cost B
.20m = 160 > .16m + 204
.20m - .16m > 204 - 160
.04m > 44
m > {{{44/.04}}}
m > 1100 miles (I meant "B" would be a better deal when he exceeds 1100 miles)