## Search found 4 matches

Fri Jan 27, 2012 8:40 am
Topic: Lift capacity: 75S + 125B <= 750
Replies: 1
Views: 2763

### Lift capacity: 75S + 125B <= 750

Could someone help me with this ? 75S + 125B\leq 750 The capacity in pounds of the lift used by a roofing company to place roofing shingles and buckets of roofing nails on rooftops is modeled by the formula shown, where S represents packs of shingles and B represents buckets of nails. Use the formul...
Wed Jan 25, 2012 1:04 pm
Topic: Mixed exercise: combining 4 solns of expensive chemical
Replies: 1
Views: 3638

### Mixed exercise: combining 4 solns of expensive chemical

Anybody can help me with this ? A chemist has four solutions of a very rare and expensive chemical that are 15% acid (cost $120 per ounce), 20% acid (cost$180 per ounce), 35% acid (cost $280 per ounce) and 45% acid (cost$359 per ounce). She requires 200 oz of a 29% acid solution. Find the combinat...
Thu Jan 19, 2012 6:55 am
Topic: Precalculus books: why answers only for odds?
Replies: 2
Views: 2661

### Re: Precalculus books: why answers only for odds?

well i'm doing it all on my own, os there is no teacher who would tell me even answers thx for answer.
Wed Jan 18, 2012 1:18 pm