Question

If a phone company charges $0.35 for the first minute and $0.25 for each additional minute for a long-distance call, how long did you talk if the phone call cost $7.85? You talked for how many minutes? Enter your answer as a whole or decimal number.

Answer 1

0,35+0,25(x-1)=7,85

Answer 2

31 minutes

Answer 3

so .35m + .25a = 7.85
.35(1) + .25a = 7.85
.35 + .25a = 7.85
.25a = 7.50
a = 30 minutes of additional plus the original 1 of normal talking...so 31 minutes

Answer 4

\[\frac{7.85-0.35}{0.25}+1=31 \]