Question

Customers of a phone company can choose between two service plans for long distance calls. The first plan has no monthly fee but charges
$0.11 for each minute of calls. The second plan has a $23 monthly fee and charges an additional
$0.07 for each minute of calls. For how many minutes of calls will the costs of the two plans be equal?

Answer 1

@Will.H

Answer 2

m(0.11) = 23 + m(0.07)

Now solve for m

Answer 3

The 1st plan is
Y = 0.11x

The 2nd is
Y = 0.07x + 23

X expresses the time in minutes

Now you need to use substitution method and find value of x

0.07x + 23 = 0.11x
23 = 0.04x
575 = x
Thus would be 575

Answer 4

Thanks!

Answer 5

You welcome