Your cousin earns $25.00 per week plus one $5 bonus.
You earn $12 per week babysitting and $15 per week running errands.
After you both work the same number of weeks, you have $11 more than her.
How many weeks did you work?
Write an equation. and solve
2007-10-16 14:36:15 · 4 answers · asked by Live To Rock♪♫ 4 in Science & Mathematics ➔ Mathematics
Let w be the number of weeks you both work. The cousin earns 25 per week plus a one-time $5 bonus, so the cousin earns 25w + 5. You earn $27 per week total, so after w weeks you have 27w. This is 11 more than the other number, so
27w = 11 + (25w+5)
Solve this for w
2007-10-16 14:40:29 · answer #1 · answered by Anonymous · 0⤊ 0⤋
Hello,
Let w = number of weeks worked.
Then 25w + 5 = 12w + 15w -11
so -2w = -16 so w = 8.
25*8 +5 = 12*8 + 15*8 -11
200 + 5 = 96 + 120 -11
205 = 205
Hope This Helps!
2007-10-16 21:43:36 · answer #2 · answered by CipherMan 5 · 0⤊ 0⤋
x = number of weeks you and your cousin worked.
12x + 15x = 25x + 5 + 11
27x = 25x + 16
27x - 25x = 16
2x = 16
x = 8 weeks
2007-10-16 21:44:52 · answer #3 · answered by edith p 3 · 0⤊ 0⤋
25x+5=12x+15x-11
6=2x
x=3
3 weeks more
2007-10-16 21:42:34 · answer #4 · answered by anonymous_1206 2 · 0⤊ 0⤋