12.1k views
1 vote
Suppose you have a gift certificate worth $20 for one long-distance phone call. If the charge is $1.10 for the first minute and $0.42 for each additional minute , what is the longest that you can talk?

User Swe
by
7.5k points

1 Answer

4 votes

Answer:

Suppose you have a gift certificate worth $20 for one long-distance phone call. If the charge is $1.10 for the first minute and $0.42 for each additional minute , what is the longest that you can talk?

20 - 1.10 = 18.9

18.9 / 0.42

= 45

Explanation:

User Boyang
by
7.9k points

No related questions found