Question

Which situation best represents the following equation?

15+.15x < 25+.05x
A Ibin is renting a car and is comparing two companies. Cars-R-Us charges $15 per day plus 15 cents per
mile. Cars-Unlimited charges $25 per day plus 5 cents per mile. What is the minimum number of miles
he must drive each day for Cars-Unlimited to be his cheapest option?
B Ibin is renting a car and is comparing two companies. Cars-R-Us charges $15 per day plus 5 cents per
mile. Cars-Unlimited charges $25 per day plus 15 cents per mile. What is the minimum number of
miles he must drive each day for Cars-Unlimited to be his cheapest option?
C Ibin is renting a car and is comparing two companies. Cars-R-Us charges $15 per day plus 15 cents per
mile. Cars-Unlimited charges $25 per day plus 5 cents per mile. What is the maximum number of
miles he must drive each day for Cars-Unlimited to be his cheapest option?
D Ibin is renting a car and is comparing two companies. Cars-R-Us charges $15 per day plus 5 cents per
mile. Cars-Unlimited charges $25 per day plus 15 cents per mile. What is the maximum number of
miles he must drive each day for Cars-Unlimited to be his cheapest option?

Answer 1

a

Explanation:

took test

Answer 2

A Ibin is renting a car and is comparing two companies. Cars-R-Us charges $15 per day plus 15 cents per mile. Cars-Unlimited charges $25 per day plus 5 cents per mile. What is the minimum number of miles he must drive each day for Cars-Unlimited to be his cheapest option?

Explanation:

Given the following:

Cars-R-Us charges:

$15 per day plus 15 cents = (15/100)=0.15 per mile.

Hence, given number of days = 1 ; number of miles = x

Total Cars-R-Us charges:

$15 + 0.15x

Cars-Unlimited charges:

$25 per day plus 5 =(5/100)=0.05 cents per mile

25 + 0.05x

15+.15x < 25+.05x

0.15x - 0.05x < 25 - 15

0.1x < 10

x < 10/0.1

x < 100

Hence, the expression represents that greater than 100 miles must be driven for Cars unlimited to be the cheaper.