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Question 441219: A chemist has two alcohol solutions, one is 20% and one is 50% alcohol solution. He needs 12 liters of a solution that is 45% alcohol, how much of each does he mix?
Click here to see answer by stanbon(75887)

Question 441789: Martin needs to mix some 40% alcohol solution with some 90% alcohol solution to obtain 15 liters of an 80% solution. How much of the 40% solution and how much of the 90% solution should he use?
I need the answer quickly, so it would be greatly appreciated if I could receive an answer within a few hours. Thank you very much.
Click here to see answer by mananth(16946)

Question 441768: How much 8% saline solution should Kent mix with 80 cubic centimeters of an 18% saline solution to produce a 12% saline solution?
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Question 441783: One type of lawn fertilizer consists of a mixture of Nitrogen, N, Phosphorus, P, and Potassium, K. An 80 Pound sample contains 8 more pounds of nitrogen and phosphorus than potassium. There is 9 times as much potassium as phosphorus.
A. write a system of three equations whose solution gives the amount of n, p, and k in this sample.
B. slove the system
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Question 441743: How much 5% maple syrup and water mixture must be added to 100% pure maple syrup to produce 5 quarts of syrup that is 10% maple syrup?
Click here to see answer by mananth(16946)

Question 441748: The dimensions of a rectangle are such that its length is 11in. more than its width. If the length were doubled and if the width were decreased by 5in., the area would be increased by 130in.^2. What are the length and width of the rectangle?
Click here to see answer by J2R2R(94)

Question 442323: What's is the solution for 8m3/10m3

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Question 442274: Extremely confused daughter tried to help and she is stumped this is from an algebra practice test word problem is:
A merchant has coffee worth $10 a pound that she wants to mix with 40 pounds of coffee worth $80 a pound to get a mixture that can be sold at $30 a pound. How many pounds of the $10 coffee should be use. Can you explain and show how you came up with answer please. Thank you for any help you can give us.
Click here to see answer by mananth(16946)

Question 442341: Two solutions of salt water contain 0.05% and 0.15% salt respectively. A lab technician wants to make 1 liter of solution which contains 0.07% salt. How much of each solution should she use?
Click here to see answer by rwm(914)

Question 442263: How do I solve this?
Two different gasohol mixtures are available. One contains 5% alcohol and the other 12% alcohol. How much of each should be mixed to obtain 500 gallons of gasohol containing 10% alcohol?
Thanks in advance.
Click here to see answer by rwm(914)

Question 442806: Nuts to You Shoppe sells cashews for $15 per kg and pecans for $10 per kg. How many kilograms of each should be mixed in order to get 20kg of a mixture worth $12 per kg?
Click here to see answer by kittycat1613(12)

Question 442804: how many ounces of a 30% solution must be added to 50 ounces of a 12% saline solution to make a 20% saline solution? Show work please.
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Question 443233: How many liters of a 10% alcohol solution must be mixed with 30 liters of a 50% solutionn to get a 40% solution?
Click here to see answer by jorel1380(3719)

Question 443269: Show all work
THe property restoration company is considering switching to a new dehumidifiedr.
Market research considers the cost of the new machines and ther efficiency shows that the switch would give them a 75% chance of making $20,000 profit, a 5% chance of breaking even, and a 20% chance of losing %5,000
How much money does puroserv expect to make with their new purchase.

Click here to see answer by jorel1380(3719)

Question 443407: a recipe for sauce makes 12 1/2 oz., and the recipe calls for 7 oz puree. you want to make thirty 1 1/2 oz servings. how many oz of puree should you use?
Click here to see answer by stanbon(75887)

Question 443683: a mixture of 8% disenfectants solution is to be made from 10 % and 7% diseenfectant solution. How much of ech solution should be used if 30 galllons of 8% solution are needed?
Click here to see answer by oberobic(2304)

Question 443883: what is the least commom denominator for 3/4 and 3/8 ?
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Question 443698: a gambler finishes a session of black jack with $5 chips and $25 chips. If he has 45 chips in all, with a total valie of $465, how many of each kind of chip does the gambler have?
Click here to see answer by jorel1380(3719)

Question 442805: A chemist needs 9 liters of a 50% salt solution. All she has available is a 20% salt solution and a 70% salt solution. How much of each of the two solutions should she mix to obtain her desired solution? Show work please.
Click here to see answer by jorel1380(3719)

Question 441627: How much water must be added to a 3oo litre solution to vary its concentration from 25% to 20%?

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Question 441199: I have two word problems that I need help with.
The first one is: An assistant receivs a 5% raise bringing her salary to $46,652. What was her salarly before her raise?
#2Bayside insurance offers two health plans. Under plan A, Giselle would have to pay the first $160 of her medical bills, plus 25% of the rest. Under plan B, Giselle would pay he first $240, but only 20% of the rest. For what amount of medial bills will plan B save Giselle money? Asumme she has over $240 in bills
Click here to see answer by jorel1380(3719)

Question 441057: How many gallons of a 40% alcohol solution must be mixed with 30 gallons of a 25% solution to obtain
a solution that is 30% alcohol?
Click here to see answer by jorel1380(3719)

Question 444253: ok i am in algerbra and my final is coming up in a couple of weeks and i honestly have no clue how to do mixtrue problems, is there any way you can help????
Click here to see answer by edjones(8007)

Question 444435: 20. Solve the following inequality.
x2 - 5x ≥ -6
A. [2, 3]
B. (-∞, 2] or [3, ∞)
C. [3, ∞)
D. (-∞, 2]

21. Solve the following inequality.
(a + 7)(a - 5)(a - 6) > 0
A. (-7, 5) or (6, ∞)
B. (-∞, -7) or (5, 6)
C. (-∞, 5)
D. (6, ∞)

22. Solve the following inequality.
x2 + 8x + 15 > 0
A. (-∞, -5) or (-3, ∞)
B. (-3, ∞)
C. (-∞, -5)
D. (-5, -3)

23. Solve the following inequality.
x3 + 4x2 - 45x > 0
A. (-5, 0) or (9, ∞)
B. (-9, 0) or (5, ∞)
C. (-9, ∞)
D. (-∞,-9) or (0, 5)

Click here to see answer by solver91311(24713)

Question 444506: hi my name is cheyenne and i just wanna no how can i find the answer ton y50
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Question 444506: hi my name is cheyenne and i just wanna no how can i find the answer ton y50
Click here to see answer by rwm(914)

Question 444477:
23. Solve the following inequality.
x3 + 4x2 - 45x > 0
A. (-5, 0) or (9, ∞)
B. (-9, 0) or (5, ∞)
C. (-9, ∞)
D. (-∞,-9) or (0, 5)

Click here to see answer by rwm(914)

Question 444474: Solve the following inequality.

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Question 444470: Solve the following inequality.

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Question 444467: 19. Solve the following inequality.

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Question 444466: 17. Solve the following inequality.

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Question 440581: Jamie wants to make a 20 lbs mix worth $22, out of $20 per lbs of Kona coffee with a $28 per lbs of Mountain coffee. How much of each mix is needed to make the 20lbs for $22 per lbs?
Click here to see answer by rwm(914)

Question 444547: How many kilograms of water must be evaporated from 40 kilograms of 10% solution to produce a 25% salt solution?
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Question 444701: how many gallons of a 5% salt solution must be mixed with 40 gallons of a 9% solution to obtain a 7% solution?
Click here to see answer by oberobic(2304)

Question 444351: Where can I find a site to create a flow chart
Click here to see answer by richard1234(7193)

Question 444831: You have been asked to set a rate for a surgicenter. Costs are budgeted to be 4,000,000 per year for projected surgical procedures of 7,000. The surgicenter expects that 50% of its procedures will be Medicare and that Medicare will pay 550.00 per procedure. The remainder will be charge payers at an expected discount of 29%. If a profit of 400,000 is required, what rate per procedure is required?

Click here to see answer by stanbon(75887)

Question 444889: chocolate nut mixes 10% chocolate and 50% chocolate, want 20 lbs with a 25% chocolate, how much of each do I need to make 20 lbs with 25% chocolate

Click here to see answer by htmentor(1343)

Question 444955: how much water should be added to 26 mL of 17% alcohol solution to reduce the concentration to 13%?
Click here to see answer by solver91311(24713)

Question 445221: Doreen Schmidt is a chemist. She needs to prepare 24 ounces of a 7 % hydrochloric acid solution. find the amount of 12% solution and the amount of 6% solution she should mix to get this solution.
Click here to see answer by mananth(16946)

Question 445258: There are twice as many adult tickets sold as children's tickets. If adult tickets cost $8 and children's tickets cost $5 and if $4200 was collected, how many of each type were sold?
Click here to see answer by chriswen(106)

Question 445263: A bank contains 300 coins, all of them quarters or dimes. If the money totals $67.50, how many of each coin are in the bank?
Click here to see answer by chriswen(106)

Question 445468: (1). The function H described by H(x)-2.75x +71.48 can be sued to predict the height, in centimeters,
(2). Write an equation of the line containing
(3) Media Services charges $30 for a phone and $20 a month for its economy plans,
Click here to see answer by rwm(914)

Question 445298: How much of a 30% saline solution must be mixed with 30L of a 50%saline solution to produce a 35% saline solution?
Click here to see answer by rwm(914)

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