1. A coffee shop owner mixes two types of coffee to make a specialty blend. Individually, the coffees sell for $7.50 per pound and $10.00 per pound. How many pounds of each type of coffee should be used to make 15 pounds of a mixture that sells for $8.95 per pound?
2. A store sells a mixture of peanuts and almonds for $4.50 per pound. Peanuts sell for $2.95 per pound and almonds sell for $5.95 per pound. How many pounds of each should be used to make 90 pounds of the mixture?
3. The triathlete likes a 30% electrolyte solution, but it is sold as 45%. How much water will he need to add to 3 liters of 45% solution to get a 30% solution?
4. One solution is 30% chlorine and another is 70% chlorine. How many liters of each must be used to make 150 liters of a solution that is 55% chlorine?
5. A 20-pound mixture of banana chips and dried apricots costs $6.89 per pound. If the mixture includes 6 pounds of banana chips that cost $1.99 per pound, how many pounds of dried apricots will be needed and what is the cost per pound for the dried apricots?
6. A 50-gallon vat of milk is 6% butterfat. How much skim milk (no butter fat) should be added to make milk that is 3% butterfat?
Algebra #79 7.7 A Mixture Problems
1. A coffee shop owner mixes two types of coffee to make a specialty blend. Individually, the coffees sell for $7.50 per pound and $10.00 per pound. How many pounds of each type of coffee should be used to make 15 pounds of a mixture that sells for $8.95 per pound?
2. A store sells a mixture of peanuts and almonds for $4.50 per pound. Peanuts sell for $2.95 per pound and almonds sell for $5.95 per pound. How many pounds of each should be used to make 90 pounds of the mixture?
3. The triathlete likes a 30% electrolyte solution, but it is sold as 45%. How much water will he need to add to 3 liters of 45% solution to get a 30% solution?
4. One solution is 30% chlorine and another is