m = numbers of driven miles
The two plans to cost the same when:
47.98 + 0.16 m = 51.98 + 0.12 m
0.16 m - 0.12 m = 51.98 - 47.98
0.04 m = 4
m = 4 / 0.04 = 100 miles
Checking the results:
47.98 + 0.16 ∙ 100 = 51.98 + 0.12 ∙ 100
47.98 + 16 = 51.98 + 12
63.98 = 63.98
Salma will rent a car for the weekend. She can choose one of two plans. The first plan has an initial fee of $47.98 and costs an additional $0.16 per mile driven. The second plan has an initial fee of $51.98 and costs an additional $0.12 per mile driven. How many miles would Salma need to drive for the two plans to cost the same?
1 answer