366,638 views
13 votes
13 votes
a cell phone plan costs $28.90 per month for 400 minutes of talk time. it costs an additional $0.07 per minute for each minute over 400 minutes. to get e-mail access, it costs 10% of the price for 400 minutes of talk time. your bill, which includes e-mail, is the same each month for 8 months. the total cost for all months is $298.56. write and solve an equation to find the number of minutes of talk time you use each month.

User Hamid Tavakoli
by
3.1k points

1 Answer

14 votes
14 votes

Answer:

Equation = 298.56=6(0.07m+23.90+0.10(23.90))

Minutes = 335

Explanation:

Okay, so first simplify to get 298.56=0.52m+172.08

Next subtract to get 0.52m=126.48

Then divide 0.52 to get 335

I hope this helps ! :)

User Nishant Ghodke
by
2.5k points