Answer:
Total cost for 20 minutes = $0.45 + $0.35 * 19.
Step-by-step 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.
