you borrow $70 from your brother. To repay the loan, you pay him $7 per week. Use w to denote the number of weeks and y as the balance on the loan.
do I have the right answer 7w/70=y if not show me how to solve this.
2007-04-17 07:47:58 · 5 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
At w=0 the balance is y=70.
At w=1 the balance is $7 less.
At w=2 the balance is $14 less.
So the balance is y = 70 - 7w
(70 dollars minus $7 dollars for every week elapsed).
2007-04-17 07:52:35 · answer #1 · answered by Anonymous · 0⤊ 0⤋
y=70-7w. This represents the 70 dollars you still have to repay at week 0. At week 10, the answer should be 0 and it is. So y=70-7w is the balance of the loan
2007-04-17 14:56:42 · answer #2 · answered by minipinsrqts1990 2 · 0⤊ 0⤋
balance = 70 - 7w
You initially have $70
Then you pay a total of $7/week x w weeks = 7w
So you are left with 70 - 7w
2007-04-17 14:51:50 · answer #3 · answered by Dr D 7 · 0⤊ 0⤋
y=70-7w
2007-04-17 14:51:43 · answer #4 · answered by questioning13x 1 · 0⤊ 0⤋
70-7w=y
2007-04-17 14:51:38 · answer #5 · answered by bruinfan 7 · 0⤊ 0⤋