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please help...
A store currently charges the same price for each towel that it sells. If the current prie of each towel were to be increased by $1, 10 fewer of the towels could be bought for $120, excluding tax. What is the current price of each towel.
Thank you in advance for your help.
- by trnguyen
Tue Dec 30, 2008 2:13 pm- Forum: Problem Solving
- Topic: please help...
- Replies: 2
- Views: 1581
(r+5)(t+1) = 70+d
rt+r+5t+5 = 70 +d
rt+r+5t-d=65
d + r + 5t – d = 65
r + 5t = 65
(r+10)(t+2) = x+d
rt+2r+10t+20 = x +d
rt + 2r + 10t – d = x -20
d + 2r + 10t – d = x – 20
2r + 10t = x - 20
Multiply the first equation by 2: 2r + 10t = 130
130 = x – 20
X = 150
- by trnguyen
Fri Dec 19, 2008 8:02 am- Forum: Problem Solving
- Topic: If a motorist
- Replies: 8
- Views: 3621