Paige borrows $700 from her parents for a new computer. She repays $100 the first month, then begins to repay her parents $75 per month. What recursive formula models the total amount of money still owed, an?

Question

Miya Choi

Mathematics

7 November, 01:06

Paige borrows $700 from her parents for a new computer. She repays $100 the first month, then begins to repay her parents $75 per month. What recursive formula models the total amount of money still owed, an?

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Answers (2)

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Kiara · Answer 1

Well since she borrowed $700, then payed back $100 the first month right?

Ok so now she only has $600 to pay back after then. Now she is paying $75 per month. SO the formula would look something like this.

100 + 75x = 700

x would represent how many months it would take to pay the rest of the money after the 100.

To solve for x just divide 600 by 75. Which is 8. So it would take 8 months to pay back the 600 that she owes.

Armando Weber · Answer 2

The formula is 700 - 100 - 75 (n-1), where n is the number of months.