Problema Solution

Moblie-30RMB calls per month - .08 RMB/text

Unicorn-20RMB calls per month - .10 RMB/text

Telecom-10 RMB calls per month- .12 RMB/text

RMB= Renminbi,the offical currency of china

If i send 1,500 texts per month which plan is the cheapest? write equations for each company to find out! the first english letter of the cheapest company will be equal to 2.

?=2

Answer provided by our tutors

If i send 1,500 texts per month i will pay


Moblie package - 30RMB calls per month - .08 RMB/text


30 + 1500*0.08 = 150RMB


Unicorn package - 20RMB calls per month - .10 RMB/text


20 + 1500*0.10 = 170RMB


Telecom package - 10 RMB calls per month- .12 RMB/text


10 + 1500*0.12 = 190RMB


Thus the cheapest is Mobile.


M=2