Me on these problems, its urgent! ( for any of these would be greatly appreciated! )
1. a gro...
Mathematics, 17.09.2019 16:30, coreen9
Me on these problems, its urgent! ( for any of these would be greatly appreciated! )
1. a grocer mixes two grades of coffee which sell for 70 cents and 80 cents per pound, respectively. how much of each must he take to make a mixture of 80 pounds which he can sell for 76 cents per pound?
2. how many quarts of pure alcohol must be added to 40 quarts of a mixture that is 35% alcohol to make a mixture that will be 48% alcohol?
3. if a container contains a mixture of 5 gallons of white paint and 11 gallons of brown paint, how much white paint must be added to the container so that the new mixture will be two-thirds white paint?
4. can the sum of three consecutive odd integers be (a) 25? (b) 45?
5. a tank can be filled in 9 hours by one pipe alone, in 12 hours by a second pipe alone, and can be drained when full, by a third pipe, in 15 hours. how long would it take to fill the tank if it is empty, and if all pipes are in operations?
Answers: 1
Mathematics, 11.01.2020 01:31
Mathematics, 11.01.2020 01:31
History, 11.01.2020 01:31