Question

You have the choice of logging on at one of two Internet cafés. Their posted rates are as follows:

Log-On Café: $6.25 plus $0.25 for every minute online

eCafé: $7.00 plus $0.20 for every minute online

Which café is the best option if you plan on using the Internet for 55 minutes? What is the equation that relates the number of minutes used and the total cost, and how much money will you save?

A.) Log-On Café, the equation is C = $0.25M + $6.25 ,and I'll save $0.75
B.) Log-On Café, the equation is C = $0.625M + $2.50, and I'll save $2.00
C.) eCafé, the equation is C = $0.70M + $2.00, and I'll save $0.75
D.) eCafé, the equation is C = $0.20M + $7.00, and I'll save $2.00

Answer 1

Choice D

Explanation:

Log-On-0.25x55+6.25=$20

ECafe-0.20x55+7.00=$18

ECafe saves $2

Answer 2

D.) eCafé, the equation is C = $0.20M + $7.00, and I'll save $2.00

Explanation:

Log-On Café: $6.25 plus $0.25 for every minute online

c = 6.25 + .25m

cost for 55 minutes

c = 6.25 + .25 (55)

c = 6.25 + 13.75

c = 20.00

eCafé: $7.00 plus $0.20 for every minute online

c = 7 + .2m

cost for 55 minutes

c = 7 + .2 (55)

c =7+11

c = 18

The e cafe is less expensive (20-18) by 2 dollars