Question 153449This question is from textbook Algebra For College Students
: Amber is signing up for cell phone service. She is trying to decide between Plan A, which costs $54.99 a month with a free phone included, and Plan B, which costs $49.99 a month, but would require her to buy a phone for $129. Under either plan, Amber does not expect to go over the included number of monthly minutes. After how many months would Plan B be a better deal? This question is from textbook Algebra For College Students
: Amber is signing up for cell phone service. She is trying to decide between Plan A, which costs $54.99 a month with a free phone included, and Plan B, which costs $49.99 a month, but would require her to buy a phone for $129. Under either plan, Amber does not expect to go over the included number of monthly minutes. After how many months would Plan B be a better deal?
Answer by jojo14344(880)  (Show Source):
You can put this solution on YOUR website!
Let's equate the 2 plans times no. of months "x" for each plan:
 ------------> 
 , cross multiply:
Let's try usage of  for each plan:
planA:
planB:
IN 25 MONTHS, PLAN A STILL A BETTER CHOICE
Let's try 26 months:
plan A:
plan B:
THERE YOU GO, YOU START SAVINGS IN CHOOSING PLAN B WHEN YOU REACH 26 MONTHS OF USAGE. TRY 36 MONTHS? 48 MONTHS?
Thank you,
Jojo
|