Question

PLEASE HELP a
23. A cell phone company charges $0.10 per
text message if a customer sends up to 100
messages per month. The company charges
$0.08 per text if a customer sends between
101-200 messages, and $0.06 per text if the
customer sends between 201-300 messages.
Today is the last day of the month. Tamira has
sent 200 text messages, is it worth it for her
to send 1 more text message? Explain.
SEE EXAMPLES 3 AND 4

Answer 1

The rate of the cell phone company is an illustration of a linear equation

It is worth it if Tamira sends an additional message

The parameters are given as:

Rate = 0.10 per message for up to 100 messages

Rate = 0.08 per message from 101 to 200 messages

Rate = 0.06 per message from 201 to 300 messages

If Tamira sends 200 messages, the total charge is:

$\mathbf{Total = 0.08 * 200}$

$\mathbf{Total = \ 16}$

If Tamira sends an additional message to make it 201 messages, the total charge is:

$\mathbf{Total = 0.06 * 201}$

$\mathbf{Total = \ 12.06}$

By comparison.

$12.06 is less than $16

This means that she spends less is she sends 201 messages.

Hence, it is worth it if Tamira sends an additional message

Read more about linear equations at:

https://brainly.com/question/11897796