Each month, a phone company charges $20 for 500 minutes of talk time plus $0.45 for each additional minute. Unlimited texting co

Question

3 years ago

15

Each month, a phone company charges $20 for 500 minutes of talk time plus $0.45 for each additional minute. Unlimited texting co

sts $30 more. Choose an expression to show the cost of a talk-and-texting plan for one month, given x minutes over 500.
Options
0.45 + 50x
50 + 0.45x 30 + 20x
500 + 50 + 0.45x

Mathematics

1 answer:

velikii [3] · Answer 1 · 2022-10-07T17:02:30+03:00

velikii [3]3 years ago

5 0

Answer:

C = 50 + (0.45x)

Step-by-step explanation:

If 500 minutes of talk = 20

and texting = 30

and each additional minute of talk = 0.45

then the bill would be (for C = total cost)

C = 20+30+(0.45 • x)

OR

C = 50 + 0.45x