Question

4. The cost of a long-distance telephone call is given by the function
C(m) = 0.1m + 0.95

where m is the length of the call in minutes. Determine how long a phone call can be made for $5.95.
100 minutes
50 minutes
45 minutes
59 minutes

Answer 1

5.95 = 0.1m + 0.95
solve for m

Answer 2

how do i do tht again ?

Answer 3

when was your book written, 1976?
who pays for long distance calls at ten cents a minute?

Answer 4

subtract 0.95 from both sides

Answer 5

what do you get ?

Answer 6

\[595=10m+95\] is a good start, work with pennies

Answer 7

lol

Answer 8

subtract 95 divide by 10

Answer 9

59?

Answer 10

@Coolsector

Answer 11

5.95 = 0.1m +0.95
subtract 0.95 from both sides
5 = 0.1m
divide by 0.1 (its like multiplying by 10) both sides
m=50

Answer 12

Ohhh ! ok

Answer 13

:)