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Homework #1 a a = amount of 30% saline solution b b = amount of 50% saline solution 0.45(800) = 360 Amount of Solution Saline a b a0.50b = 30% solution 50% solution 45% solution Jenny mixes a 30% saline solution with a 50% saline solution to make 800 milliliters of a 45% saline solution. How many milliliters of each solution does she use?

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#1 200 ml of 30% solution 600 ml of 50% solution Homework Jenny mixes a 30% saline solution with a 50% saline solution to make 800 milliliters of a 45% saline solution. How many milliliters of each solution does she use? a a = amount of 30% saline solution b b = amount of 50% saline solution

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Homework Peanuts cost $1.60 per pound and raisins cost $2.40 per pound. Brad wants to make 8 pounds of a mixture that costs $2.20 per pound. How many pounds of peanuts and raisins should he use? #2 P = amount of peanuts (lbs.). R = amount of Raisins (lbs.) Amount (lbs) Cost ($) P R 8 + = Mixture Peanuts Raisins 1.60P 2.40R (8) = 17.60

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Homework Peanuts cost $1.60 per pound and raisins cost $2.40 per pound. Brad wants to make 8 pounds of a mixture that costs $2.20 per pound. How many pounds of peanuts and raisins should he use? #2 P = amount of peanuts (lbs.). R = amount of Raisins (lbs.) 2 pounds of Peanuts 6 pounds of Raisins

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Homework #3 a a = amount of 10% aspirin b b = amount of 25% aspirin 0.16(10) = 1.6 Amount of medicine aspirin a b a0.25b = 10%25%16% A pharmacist wants to mix medicine that is 10% aspirin with a medicine that is 25% aspirin to make 10 grams of a medicine that is 16% aspirin. How many grams of each medicine should the pharmacist mix together?

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Homework #3 a a = amount of 10% aspirin b b = amount of 25% aspirin A pharmacist wants to mix medicine that is 10% aspirin with a medicine that is 25% aspirin to make 10 grams of a medicine that is 16% aspirin. How many grams of each medicine should the pharmacist mix together? 6 grams of the 10% aspirin 4 grams of the 25% aspirin

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Homework A coffee shop plans on selling it’s house blend for $8.50 per pound. The mix will be made from Mexican beans that cost $7 per pound, with Costa Rican beans that cost $9 per pound. How many pound of Costa Rican beans are needed to make 150 pounds of the house blend? #4 M = amount of Mexican beans (lbs.). C = amount of Costa Rican beans (lbs.) Amount (lbs) Cost ($) M C = Blend Mexican Costa Rican 7M 9C (150) = 1275

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Homework A coffee shop plans on selling it’s house blend for $8.50 per pound. The mix will be made from Mexican beans that cost $7 per pound, with Costa Rican beans that cost $9 per pound. How many pound of Costa Rican beans are needed to make 150 pounds of the house blend? #4 M = amount of Mexican beans (lbs.). C = amount of Costa Rican beans (lbs.) pounds of Costa Rican beans

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