Question

a cell phone company offers two different monthly text-messages plan as shown is the table below. if amanda sends 68 messages a month, which plan should she choose? justify your answer mathematically

Answer 1

Answer:

The answer would be Plan B

Step-by-step explanation:

35 and 18 are flat rates which mean you only pay for them once. 0.10 and 0.18 are how much she is being charged for one message.

My work:

Plan A

35+0.10(68) - we multiply 68 by 0.10 which is 6.8

35+6.8=41.8- 41.8 is how much she would pay for plan A

Plan B

18+0.10(68)- we multiply 68 by 0.10 which is 6.8

18+6.8=24.8- 24.8 is how much she would pay for plan A

when we compare them 24.8 is less than 41.8

Hope this helps!

Answer 2

Answer:

Plan B

Step-by-step explanation:

Let's take plan a for example.

Plan A= 35.00 a month and 10 cents for message fee. They're 30 days in a month(most months)

35x30= 1,050 That's how much she would be paying monthly with plan A. It says she send 68 text messages so 68x10=680 which is 6 dollars and 8 cents a month . (and that's her fee per message)

Now, Plan B =18.00 monthly fee. 30x18=540 and her fee would be 68x30=2040 =20.4 which is 20 dollars and 4 cents a month for messages

now we add these, plan A 1,050+6.80=785

plan B= 560.4

Thus, plan B would be a better option