Allegra has a cell-phone plan that charges $65 per month and $0.10 for every minute that she uses the phone beyond what her plan

Question

3 years ago

11

Allegra has a cell-phone plan that charges $65 per month and $0.10 for every minute that she uses the phone beyond what her plan

allows. One month, she was billed $73.40. Define a variable for the unknown. Write an equation to model the problem. Explain your answer. Solve the equation. Show your work. Find the number of minutes that Allegra went over the time that the plan allows. Explain your answer.

Mathematics

2 answers:

Sloan [31] · Answer 1 · 2022-05-20T08:10:56+03:00

Sloan [31]3 years ago

8 0

65+0.1m=bill

bill=73.40

65+0.1m=73.4
minus 65 from both sides
0.1m=8.4
divide both sides by 0.1
m=84
went 84 mins over

Helga [31] · Answer 2 · 2022-05-20T06:46:24+03:00

Helga [31]3 years ago

3 0

X0.10. xtimesy (y being every minute) = 8.40 (Money that she spent extra) Well 8.40 divided by 0.10 is 84. so she went 84 mins over