Question

A local telephone company offers two plans for long-distance telephone

service. See the table below for a comparison of the plans. At least how
many minutes of long-distance calls must a customer make to pay less
using Plan A?
Monthly Per Minute
Fee Charge
Plan A $7.00 $0.13
Plan B $0.00 $0.14

1)26
2)701
3)25
4)699

Answer 1

I think it is #3 (hopefully it’s right )

Answer 2

2

Explanation:

7+0.13x . substitute 25, = 7+0.13(25) = 7+3.25= 10.25

b = 0.14x, subsitute 25, = 3.5

so 3. is wrong, along with 1. is also wrong

if using 4, it is 7 + 0.13(699)= 97.87

0.14 (699) = 97.86.

so only number 2 is correct

0.13(701) + 7 = 98.13

0.14(701) = 98.14