Question

Nadine can send or receive a text message for $0.15 or get an unlimited number for $5.00. Write and solve an inequality to determine how many messages she can send and receive so the unlimited plan is cheaper than paying for each message.

Answer 1

0.15*t < 5.00

33 texts

Explanation:

given : $0.15 per text; unlimited cost is $5.00

# of texts = t

0.15*t < 5.00

t < 33.33; since you cannot make 33.33 texts i will round down to 33 texts.

Basically you can send or receive up to 33 texts and it will be cheaper than $5.00

0.15(33) = $4.95

at 34 texts, 0.15(34) = $5.10