Question

I need help on this question

Answer 1

300 minutes because 20+(300*0.15)=66

and 35+(300*0.10)=66.

Answer 2

let minutes = m

let total = t

For the first plan (1), the cell phone plan charges $20 a month (flat fee), and $0.15 per minute.

For the second plan (2), the cell phone plan charges $35 a month (flat fee) and $0.10 per minute

(1) t = 0.15m + 20

(2) t = 0.10m + 35

Because they all equal t, set them equal to each other

0.15m + 20 = 0.10m + 35

0.15m (-0.10m) + 20 (-20) = 0.10m (-0.10m) + 35 (-20)

0.15m - 0.10m = 35 - 20

0.05m = 15

Isolate the m. Divide 0.05 from both sides

0.05m/0.05 = 15/0.05

m = 15/0.05

m = 300

300 minutes is your answer

hope this helps