Questions on Word Problems: Mixtures answered by real tutors!

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Word Problems: Mixtures

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Question 236154: Carol has 2 rose bushes; one with red flowers and one with yellow flowers. The red bush has 3 times as many flowers as her yellow floers,Together there are 124 flowers. How many of each color flower does she have? What iis the equation(or system equation)
Click here to see answer by rfer(2588)

Question 236048: how many kilograms of water must be added to 10 kg of a 75% antifreeze solution in order to produce a 50% solution?
Click here to see answer by stanbon(25959)

Question 236010: how many gallons of 70% antifreeze solution must be mixed with 60 gallons of 10% antifreeze to get a mixture that is 60% antifreeze
Click here to see answer by checkley77(6671)

Question 235976: A chemist wants to create 60 grams of an nickel alloy that is 65% pure. She has one mixture of an nickel alloy that is 45% pure and another mixture that is 75% pure. How much of each mixture must she use?

Click here to see answer by josmiceli(2979)

Question 235884: Two ships leave port at the same time. One sails south at 15 mi/h and the other sails east at 20 mi/h. Find a function that models the distance D between the ships in terms of the time t (in hours) elapsed since their departure.
Click here to see answer by josmiceli(2979)

Question 235817: Complete the factorization.
16x^7 = 2x^2( )
Click here to see answer by checkley77(6671)

Question 235629: Chemistry. A chemist has two solutions: one containing 40% alcohol and another containing 70% alcohol. How much of each should be used to obtain 80 liters of a 49% solution?
Im trying to find a way to solve this using matrices. I'm really unsure about how to go around solving this problem. Thanks
Click here to see answer by Theo(547)

Question 235504: outline the steps you would use to prepare a 10% salt solution from a 25% salt solution for a 100 ml.
Click here to see answer by stanbon(25959)

Question 235297: A chemist has two solutions: one containing 40% alcohol and another containing 70% alcohol. How much of each should be used to obtain 80 liters of 49% solution.
Click here to see answer by nerdybill(2413)

Question 235101: How many milliliters of water must be added to 500mL of a 40% solution of hydrochloric acid to reduce it to a 25% solution?
Click here to see answer by Alan3354(5863)

Question 235124: solve and graph:
2<10-4k<6
Click here to see answer by solver91311(4818)

Question 235106: How many liters of water must be added to 10 L of 30% solution of antifreeze to reduce it to a 20% solution?
Click here to see answer by Alan3354(5863)

Question 235038: I am confusing myself with this problem. We have regular yogurt that is 3%fat and 1% fat yogurt. How many pounds of regular yogurt and hom many pounds of no fat yogurt would have to be mixed to obtain 60 pounds of low-fat yogurt. I tried the addition method but not sure that I have the right answere.
Click here to see answer by ankor@dixie-net.com(6567)

Question 234978: Forty percent of Joy's salary went to her room and board. If she paid 1 500.00 pesos for room and board, how much was her salary?
Click here to see answer by nerdybill(2413)

Question 234978: Forty percent of Joy's salary went to her room and board. If she paid 1 500.00 pesos for room and board, how much was her salary?
Click here to see answer by checkley77(6671)

Question 234919: how many liters of 40% and 80% acids must be mixed in order to make 20 liters of a 55% acid solution?
Click here to see answer by Earlsdon(4871)

Question 234801: PURCHASE 50 STAMPS. SOME STAMPS .22 EACH. THE REST .14 EACH TOTAL SPENT IS 10.04

Click here to see answer by checkley77(6671)

Question 234753: how many gallons of a 70% acid solution must be mixed with 30 gallons of a 24% solution to obtain a solution that is 60% acid?
Click here to see answer by checkley77(6671)

Question 234719: gift wrap @ $4 solids+$6 prints =total number of rolls480 and total dollar amount = $2340 How many rolls of each sold?
Click here to see answer by solver91311(4818)

Question 234550: If x ml of water are added to 200 ml of pure orange (concentrate) the result is a mixture that is 80% orange juice (concentrate) and the rest water, what equations could be used to solve for x?
Please help me solve the problem too.
Click here to see answer by solver91311(4818)

Question 234293: How much of the solutions do I need to use when one container has 40% and another has 100% and 50% is needed for one gallon?I came up with a huge number.
Click here to see answer by stanbon(25959)

Question 234281: 5025/.9975
Click here to see answer by rfer(2588)

Question 234152: the larger of two numbers is 5 less than twice the smaller number. the sum of the two numbers is 28. what are the numbers?
Click here to see answer by nyc_function(155)

Question 233645: How much 30% solution and 70% solution need to be combined to make 80 ml of a 60% solution?
Click here to see answer by nerdybill(2413)

Question 233645: How much 30% solution and 70% solution need to be combined to make 80 ml of a 60% solution?
Click here to see answer by stanbon(25959)

Question 233641: How much 30% solution need to be combined to make 80 ml of a 60 % solution?
Click here to see answer by Alan3354(5863)

Question 233472: a store sells mixtures of peanuts and almonds for 4.50lb,peanuts sell for 2.95per pound almonds sell for 5.95 per pound how many pounds of each should be used to make 90 pounds of this mixture
Click here to see answer by checkley77(6671)

Question 233344: How much water should be added to 64 ounces of 10% salt solution to make a 2% salt solution?
Click here to see answer by stanbon(25959)

Question 233242: the sum of two numbers is 129 and their difference is 61. what are the two numbers?
Click here to see answer by mando271(41)

Question 233091: I have 10% of homemade salsa that is 25% jalapenos. I buy some store salsa that is 4% and mix the two salsa together. how much store salsa do i need in order to have a mixture that is 10% jalapenos?
Click here to see answer by stanbon(25959)

Question 232695: A metallurgist needs to make 12.4 lb. of an alloy containing 50% gold. He is going to melt and combine one metal that is 60% gold with another metal that is 40% gold. How much of each should he use?
Click here to see answer by ankor@dixie-net.com(6567)

Question 232904: how many liters of a 15 percent salt solution must be added to 2 liters of 30 percent to make a mixture of 18 percent salt solution?
Click here to see answer by checkley77(6671)

Question 232862: a motel charges 80.00 per day for double occupancy and 70.00 per day for single occupancy. If 80 rooms are occupied one night for a total of 5800.00 how many rooms of each kind are occupied?
Click here to see answer by rfer(2588)

Question 232849: How much brand A coffee costing 3.95 per pound should be mixed with 25 pounds of brand b coffee worth 3.60 per pound in order to obtain a mixture worth 3.70 per pound?
Click here to see answer by RAY100(1608)

Question 232738: You have a solution that is 50% alcohol and a solution that is 80% alcohol. How much of each do you need to mix to get 3 gallons of a solution that is 60% alcohol?
Click here to see answer by nerdybill(2413)

Question 232615: Coffee that sells for $3.60/kg is mixed with coffee that sells for $2.40/kg to make 1200 kg of coffee that will sell for $2.80/kg. How many kilograms of each type of coffee was used?
Click here to see answer by checkley77(6671)

Question 232625: One grade of tea worth $3.20 a pound is to be mixed with another grade worth $2 per pound to make 20 pounds that will sell for $2.72 per pound. How much of each grade of tea must be used?
Thanks a ton!!!
Click here to see answer by stanbon(25959)

Question 232610: A photographer wishes to mix 2 liters of a 5% acetic acid solution with a 10% solution to get a 7% solution. How many liters of the 10% solution must be added?
Thanks so much for your help!
Click here to see answer by checkley77(6671)

Question 232491: A silversmith mixed 25g of a 70% silver alloy with 50g of a 15% silver alloy. What is the percentage concentration of the resulting alloy?
Click here to see answer by Alan3354(5863)

Question 232371: How many liters of pure acid must be added to 3 liters of a 50% acid solution to obtain a 75% acid solution?
Click here to see answer by ptaylor(1578)

Question 232286: a chemist needs a 30% iron alloy. How many grams of a 70% iron alloy must be mixed with 16 grams of a 20% iron alloy to obtain the required 30% alloy
Click here to see answer by stanbon(25959)

Question 232224: I have two gallons of grape drink that is one-third water, and I mix it with three gallons of lemonade that is three-fourths water. After mixing, I spill one gallon of the mixture. How much water is there in the remaining four gallons of the mixture?
Click here to see answer by stanbon(25959)

Question 232133: calvin invested $7500 for one year, part at 12% annual interest and the rest at 10% annual interest. His total for the year was $890. How much money did he invested at 12%?
Click here to see answer by Earlsdon(4871)

Question 231932: I have so many problems with word problems and I really don't know how to set up the problem please help.
Jose invested a certain amonunt of money at 8% interest and $300 more than that amount at 11%. His total yearly interest was $69.10. How much did he invest at the 8% rate?
Click here to see answer by checkley77(6671)

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