Question

A phone company charges $0.45 for the first minute and $0.35 for each additional minute for a long distance call. Which numerical expression can be used to find the cost of a 20-minute phone call?

Answer 1

0.45+19(0.35)

Total cost $7.10 (0.45+6.65)

Answer 2

Total cost for 20 minutes = $0.45 + $0.35 * 19.

Explanation:

Given : A phone company charges $0.45 for the first minute and $0.35 for each additional minute for a long distance call.

To find : Which numerical expression can be used to find the cost of a 20-minute phone call.

Solution : We have given

Company charge for 1 minute = $0.45 .

For other minutes = $0.35 .

Total minutes he called = 20 minutes

Cost of 1 minute call = $0.45 .

Cost of 19 minutes call = $0.35 * 19.

Total Cost for 20 minute = Cost of 1 minute + Cost pf 19 minutes.

Total cost for 20 minutes = $0.45 + $0.35 * 19.

Therefore, Total cost for 20 minutes = $0.45 + $0.35 * 19.