Question

a sial around long distance phone company charges 3 cents per minute, plus 30 cents to connect. mellissa's normal long distance carrier charges a flat rate of 7 cents per minute. for what call times will melissa save money with the dial around company?
how do i set this up?

Answer 1

dial*

Answer 2

Write an expression for each and set them equal.

Answer 3

3+30x=7?

Answer 4

i get 7.6 but i'm not sure if its right

Answer 5

Close.
Let x = number of minutes.
Dial around company costs: 0.30 + 0.03x
Normal long distance co.: 0.07x
0.30 + 0.03x = 0.07x
You have the x with the wrong amount. The per minute charge for both cases is the one with the x. The flat fee has no x.

Answer 6

oh i see 7.5

Answer 7

thanks

Answer 8

You got it!

Answer 9

wlcm