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Mike pays $12.70 per month and $0.14 per message (t) for texting ability on his

phone. His total monthly cost (c) for texting is shown in the equation below.
c=12.70+0.14t
How many text messages can Mike send and receive for $20?
A.15
B.70
C.73
D.52

2 Answers

2 votes
We can start by setting up an equation to represent the problem. We want to find the value of t that makes c equal to $20:

$20 = 12.70 + 0.14t

Subtracting 12.70 from both sides, we get:

$7.30 = 0.14t

Dividing both sides by 0.14, we get:

t = 52.14

Therefore, Mike can send and receive 52 text messages for $20. However, since he cannot send or receive a fraction of a text message, the actual number of messages he can send and receive for $20 is 52.

So the answer is D. 52.
User Mikkel
by
7.9k points
3 votes

Answer:

D. 52

Explanation:

Let t be the number of text messages.

12.70 + .14t = 20

.14t = 7.30

t = 52.14 = 52 text messages

User Olly Hicks
by
7.7k points