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Question 993666: The store manager decides to make 40lbs of blend of coffees that he plans to sell for 10 dollars a lb. He mixes some coffee that sells for 9 dollars a lb with coffee that sells for 12 dollars a lb. How much of each should he use? (Hint- one coffee is x and the other coffee of the rest of the mixture so use 40 - x for the amount)
I already calculated that 40 lbs of coffee costing 10 dollars a lb would be 400 dollars. Now I need help on how to calculate how many pounds adding up to 40lbs. I would use of each that would bring me to 400 dollars total.
Thank you!
Click here to see answer by Theo(13342)

Question 993677: One solution contains 40% alcohol and another contains 72% alcohol. How much of each should be mixed together to obtain 16 ounces of a 62% alcohol solution?
Click here to see answer by fractalier(6550)

Question 993766: This mixture problem has me stuck. The problem: A hospital needs a 50% dextrose solution. Only a 75% and 40% solution are in stock. How much of the 75% solution should be mixed with 500 oz of the 40% solution to get a 50% dextrose solution. My teacher showed us how to set up the chart with the percentages and how to multiply across and add down but the column where the variables is confusing me.

Click here to see answer by Theo(13342)

Question 993788: If there is 3 cups of sugar for every 2 cup of vinegar how much sugar for 1 cup of vinegar.
Click here to see answer by Theo(13342)

Question 993840: write the equation of a line perpendicular to 9x+5y=4 that passes through the point (9,-5)
Click here to see answer by ikleyn(52786)

Question 993865: How many kg of wheat selling at Rs. 5.20 per kg should be mixed with wheat selling at 4.40 per kg to make a mixture of 30 kg selling at Rs. 144.80 ?
Click here to see answer by addingup(3677)

Question 993897: Manha wants to make a 36 percent acid solution. She has already 3 leters of a 72 percent acid solution. How many litres of a 9 percent acid solution must she add.
Click here to see answer by josmiceli(19441)

Question 994028: How many 2 and 1/2 pound sugar jars can be filled out of 36 pound container?
Click here to see answer by rfer(16322)

Question 994028: How many 2 and 1/2 pound sugar jars can be filled out of 36 pound container?
Click here to see answer by ikleyn(52786)

Question 994064: A scientist needs 60 liters of a 60% acid solution. He currently has a 40% solution and a 70% solution. How many liters of each does he need to make the needed 60 liters of 60% acid solution?
Gabe neeeds ? liters of the 40% solution.
He also needs ? liters of the 70% solution.
Click here to see answer by stanbon(75887)

Question 994006: A tank contains 2440 Liters of pure water. A solution that contains 0.03 kg of sugar per liter enters the tank at a rate of 5 liters per minute. The solution is mixed and drains at the same rate. Find the amount of sugar after 66 minutes.
Click here to see answer by ankor@dixie-net.com(22740)

Question 994088: the fastest temperature drop ever recorded was 49 deg F in 15 mins, recorded in Rapid City, South Dakota in 1911. how many degree C was this?
Click here to see answer by solver91311(24713)

Question 994150: Suppose that one solution contains 50% alcohol and the other solution contains 80% alcohol. How many liters of each solution should be mixed to make 10.5 of a 70% solution?
Click here to see answer by stanbon(75887)

Question 994203: The perimeter of a rectangular farm is 10km.its length is one and half times its breadth.find the length and breadth of the farm
Click here to see answer by stanbon(75887)

Question 994279: confused on this word problem..need helpppp
20% alcohol solution and 70% alcohol solution available. how many liters of each must the pharmacy use to make a mixture containing 50 liters of 60% alcohol solution?
Click here to see answer by KMST(5328)

Question 994283: One type of chocolate mixture contains 30% of nuts, by mass. A second type of chocolate mixture contains 20% of nuts, by mass. What mass of each type of chocolate mixture needs to be mixed to make a 500-g chocolate mixture that will have 24% nuts, by mass?
Click here to see answer by josgarithmetic(39617)

Question 994364: how many liters of a 20% solution of a chemical should be mixed with 10 liters of a 50% solution to obtain a mixture that is 40% chemical
Click here to see answer by stanbon(75887)

Question 994420: Please help me solve this problem:
4 ml of a 5% saline solution was mixed with 3
ml of a 89% saline solution. Find the
concentration of the new mixture.
Click here to see answer by Boreal(15235)

Question 994425: Jimmy mixed 4 oz. of peanuts with 6 oz. of
mixed nuts containing 40% peanuts. What
percent of the new mixture is peanuts?
Click here to see answer by josgarithmetic(39617)

Question 994415: joe and sam use a metal alloy that is 19% copper to make jewelry. How many ounce of an allow that is 12% copper must be mixed with an alloy that is 25% copper to form 55 ounces of desired alloy?
Click here to see answer by josgarithmetic(39617)

Question 994496: How many grams of pure gold must be mixed with 40% gold alloy to produce 100 grams of 52% alloy?
Click here to see answer by josmiceli(19441)

Question 994526: How many pounds of coffee that is 40% Java beans must be mixed with 80lbs of coffee that is 30% Java beans to make coffee that is 32% Java beans?
Click here to see answer by josgarithmetic(39617)

Question 994589: A laboratory technician needs to make a 36-liter batch of a 40% acid solution. How can the laboratory technician combine a batch of an acid solution that is pure acid with another that is 20% to get the desired concentration?
Click here to see answer by josgarithmetic(39617)

Question 994591: in a mixture of concrete there are three lb of cement mix for each pound of gravel .if the mixture contains a total of 76 lb of these two ingredients how many pounds of gravel are there?
Click here to see answer by josgarithmetic(39617)

Question 994592: A laboratory technician needs to make a 42-liter batch of a 40% acid solution. How can the laboratory technician combine a batch of an acid solution that is pure acid with another that is 10% to get the desired concentration?
Click here to see answer by macston(5194)

Question 994590: A laboratory technician needs to make a 45-liter batch of a 40% acid solution. How can the laboratory technician combine a batch of an acid solution that is pure acid with another that is 10% to get the desired concentration?
Click here to see answer by macston(5194)

Question 994604: Mani Peanut Company wants to mix 20 kilos of peanuts worth P90 a kilo with cashew nuts worth P150 a kilo in order to make an experimental mix worth P110 a kilo.How many kilos of cashew nuts should be added to the peanuts?
Click here to see answer by josgarithmetic(39617)

Question 994708: If sugar cost 0.75$ for 250 ml how much would it cost for 355 ml of sugar ?
Click here to see answer by fractalier(6550)

Question 994765: If you wish to increase the percent of acid in 50 mL of a 15% acid solution in water to a 25% acid, how much pure acid must you add?
Thank you.
Click here to see answer by ankor@dixie-net.com(22740)

Question 994900: A chemist needs 10L of 40% solution of alcohol. He plans to mix a 60% solution with a 20% solution. How many liters of each solution must he mix to produce the required solution?
Click here to see answer by Edwin McCravy(20056)

Question 994936: What is ∣A∣
If A={apple,pear,banana}

Click here to see answer by ikleyn(52786)

Question 995026: I need 250 millileters of a 20% solution. I only have a 10% solution and a 60% solution available.
How many millileters of 10% solution must I mix with the 60% to obtain the required solution?
Click here to see answer by josgarithmetic(39617)

Question 994923: Each ounce of substance A supplies is 4% of nutrition patient needs. Substance B is 10% and C is 14%. Restrictions require A & C to be given in equal amounts, the amount of B is 1/5 of either A or C, find the number of ounces each substance should be to provide 100% nutrition.
Click here to see answer by ankor@dixie-net.com(22740)

Question 994292: Dried bananas are sold for 75 per kga and dried mangoes are sold for 120 per kg.how many kg of dried mangoes should be mixed with 5kg of banana to get a mixture that sells 100 per kg?
Click here to see answer by josgarithmetic(39617)

Question 995210: You need a 55% alcohol solution. On hand, you have a 30 mL of a 35% alcohol mixture. You also have 60% alcohol mixture. How much of the 60% mixture will you need to add to obtain the desired solution?
Click here to see answer by josgarithmetic(39617)

Question 995245: What is 6 less than 81?
Click here to see answer by Alan3354(69443)

Question 995254: how many liters of a 70% acid solution must be mixed with a 30% acid solution to get 240 L of a 60% acid solution?
Click here to see answer by macston(5194)

Question 995277: One canned juice drink is 30% orange juice, another is 5% orange juice. How many liters of each should be mixed together in order to get 25 liters that is 7% of orange juice.
Click here to see answer by stanbon(75887)

Question 995416: a 50% juice is to be mixed witha 30% juice to get 200 liters of a 45% juice mixture how many liters of each must be mixed
Click here to see answer by stanbon(75887)

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