Farrah borrowed $155 from her brother. She has already paid back $15. She plans to pay back $35 each month until the debt is paid off.
Which describes the number of months it will take to pay off the debt? Select three options.
x + 15 + 35 = 155
35 x + 15 = 155
35 x = 155 minus 15
It will take 8 months to pay off the debt.
It will take 4 months to pay off the debt.
Answers
35 x + 15 = 155
It will take 4 months to pay off the debt.
Step-by-step explanation:
The correct options are:
35x + 15 = 155
=> 35x = 140
=> x = 140/35 = 4
Given : Farrah borrowed $155 from her brother. She has already paid back $15. She plans to pay back $35 each month until the debt is paid off.
To Find : Which describes the number of months it will take to pay off the debt
Solution:
She plans to pay back $35 each month until the debt is paid off.
let say number of months = x
To be paid in x month = 35x
already paid 15
Hence total paid = 35x + 15
Total to be paid = 155
=> 35x + 15 = 155
or 35x = 155 - 15
35x = 140
=> x = 4
It will take 4 months to pay off the debt
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