SOLUTION: Irene paid $40 more for her cell phone bill in July than in June. In August she paid $10 less than her June bill. If she paid a total of $120 for her cell phone, how much did she

Question 767682: Irene paid $40 more for her cell phone bill in July than in June. In August she paid $10 less than her June bill. If she paid a total of $120 for her cell phone, how much did she pay for her August bill?
Answer by Cromlix(4381) (Show Source): You can put this solution on YOUR website!
June bill = x
July bill = x + 40
August bill = x - 10
Total:
x + (x + 40) + (x - 10) = 120
x + x + 40 + x - 10 = 120
3x + 30 = 120
3x = 120 - 30
3x = 90
x = 30
August bill was $20.
Hope this helps.
:-)
RELATED QUESTIONS
Jane has a pre-paid cell phone with Splint. She can't remember the exact costs, but her... (answered by josgarithmetic,ikleyn)

Michaela pays her cell phone service provider $49.95 per month for 500 minutes. Any... (answered by macston)

An MTN Cellular phone user notices that he cellular phone accounts of three consecutive... (answered by josgarithmetic)

An MTN cellular-phone user notices that her cellular phone accounts for three... (answered by Theo,ikleyn)

An MTN cellular-phone user notices that her cellular phone accounts for three consecutive (answered by ikleyn)

linda's cell phone bill is bill is $30 per month plus 5 cents for every minute over 300... (answered by drk)

How do you solve a linear equation when the constant isn't given? For example: Lisa can... (answered by josmiceli)

Tanya has ten bills in her wallet. She has a total of $40. If she has one more $5 bill... (answered by stanbon)