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Question 1046479: Let n ounces of a 25% acid solution be mixed with m ounces of a 65% salt solution. Which of the following are possible salt concentrations of the mixture?
Click here to see answer by Alan3354(69443)

Question 1046486: How many gallons of a 10% acid solution must be mixed with 5 gal of a 30% acid solution to make a 14% acid solution?
Click here to see answer by josgarithmetic(39617)

Question 1046486: How many gallons of a 10% acid solution must be mixed with 5 gal of a 30% acid solution to make a 14% acid solution?
Click here to see answer by ikleyn(52786)

Question 1046651: in a small workshop, eight 5 gallon drums of oil are on hand. If 2 gallons are used each day and the owner wants a 30 day supply on hand how many drums should be ordered
Click here to see answer by ewatrrr(24785)

Question 1046669: Joe mixes 14 oz. of peanuts at $1.20 per oz with some raisins at $0.7 per oz. to get a mixture at $1.05 per oz. How many ounces of raisins are put in the mixture?
Click here to see answer by Boreal(15235)

Question 1046721:
How much pure acid should be mixed with 2 gallons of a 60% acid solution in order to get a 90% acid solution?
Click here to see answer by addingup(3677)

Question 1046721:
How much pure acid should be mixed with 2 gallons of a 60% acid solution in order to get a 90% acid solution?
Click here to see answer by josmiceli(19441)

Question 1046794: An experiment calls for a 6% salt solution. Only a 3% salt solution and an 8% salt solution are available. How many gallons of each must be combined to obtain 40 gallons of a 6% salt solution?
Click here to see answer by ewatrrr(24785)

Question 1046792: A coin bank containing only dimes and quarters has 12 more dimes than quarters. The total value of the coins is $4. How many quarters and dimes are in the coin bank?
Click here to see answer by ewatrrr(24785)

Question 1046814: pure acid is to be added to a 10% acid solution to obtain 90L of 42% solution what amounts of each should be used?

Click here to see answer by addingup(3677)

Question 1046789: Granola costs $4.50 per pound. Assorted nuts cost $7 per pound. How many pounds of granola and nuts are needed to make 7 pounds of trail mix that costs $5 per pound?
Click here to see answer by josgarithmetic(39617)

Question 1046861: Mr. Abou leaves Edmonton traveling north at an average speed of 60 km/h. An hour later Mr. Collins leaves on the same route at 100km/h. How many hours after he left, did Mr. Collins overtake Mr. Abou?
Click here to see answer by josmiceli(19441)

Question 1046867: how many pounds of 60-40 solder (60% tin, 40% lead) must be mixed with 40-60 solder to produce 60 grams of 55-45 solder?

Click here to see answer by ikleyn(52786)

Question 1047032: fred mixed 10 ml of an acidic solution with 9 ml of a 40% acidic solution to make a 41% acidic soultion. find the percent acid concentration of the first solution
Click here to see answer by josmiceli(19441)

Question 1047076: For an experiment, a student requires 200 milliliters of a solution that is 12 % NaCl (sodium chloride). The storeroom has only solutions that are 15 % NaCl and 5 % NaCl. How many milliliters of each available solution should be mixed to get 200 milliliters of 12 % NaCl?
Click here to see answer by josmiceli(19441)

Question 1047128: What is the answer in a solution:two ninth of the people in a restaurant are adults.if there 91 adults and children,how many children are there in the restaurant..thankyou.here's my email tatabalabs@gmail.com
Click here to see answer by stanbon(75887)

Question 1046860: Mr. Abou leaves Edmonton traveling north at an average speed of 60 km/h. An hour later Mr. Collins leaves on the same route at 100km/h. How many hours after he left, did Mr. Collins overtake Mr. Abou?
Click here to see answer by jorel555(1290)

Question 1047315: Let n ounces of a 15% acid solution be mixed with m ounces of a 55% salt solution. Which of the following are possible salt concentrations of the mixture? (Select all that apply.)
10%
40%
45%
50%
85%
Click here to see answer by ikleyn(52786)

Question 1047506: A bartender mixes a batch of vodka (40% alcohol) with tonic water (no alcohol) to make 5 liters of
vodka and tonic that is 22% alcohol. How much tonic water, and how much vodka does he need to
mix?

Click here to see answer by stanbon(75887)

Question 1047505: How many liters of a 25% antifreeze solution should be mixed with a 40% antifreeze solution to
make 6 liters of a 30% antifreeze solution?

Click here to see answer by ikleyn(52786)

Question 1047504: A caterer is making 60 quarts of punch by mixing a fruit drink that is 10% pure fruit juice with
some pure pineapple juice. How much of each will he need to use to end up with a punch that is
25% pure fruit juice?

Click here to see answer by josgarithmetic(39617)

Question 1047558: A laboratory solution is prepared by mixing water and pure ethanol in such a way that the ethanol is 50% of total mixture. How much water and how much ethanol must be combined to give 100 mL of this solution?
Click here to see answer by Alan3354(69443)

Question 1047594: A laboratory solution is made that is water and ethylene glycol. How could one prepare 250 mL of a 30% ethylene glycol solution?
Click here to see answer by josgarithmetic(39617)

Question 1047614: A laboratory solution is required that is 10% acetonitrile, 25% methanol, and the rest is water. How could you prepare this solution? ( The total volume is unspecified, so you can prepare any volume you want.
Click here to see answer by ikleyn(52786)

Question 1047711: How many gallons of a 70% antifreeze solution must be mixed with 80 gallons of 15% antifreeze to get a mixture that is 60% antifreeze? Use the six step method
Click here to see answer by josgarithmetic(39617)

Question 1047787: fred blended coffee worth 95.00 pesos per kg with coffee worth 115.00 pesos per kg to make 50kg of coffee that will be sold at 107.00 pesos per kg . how many kilograms of each kind did he blend?
Click here to see answer by ewatrrr(24785)

Question 1048096: How many pounds of coffee beans that costs $4 per pound should be added to 10 pounds of coffee beans that costs $10 per pound to have a new blend of coffee that costs $6 per pound? (Enter an exact number.)
Click here to see answer by josgarithmetic(39617)

Question 1048267: Let A={a,b,c}, list elements of A*A
Click here to see answer by stanbon(75887)

Question 1048410: A chemist has 5 L of a solution that contains 0.3 L of acetic acid. The chemist needs to prepare 8 L of a solution with the same percent concentration of acetic acid. How much acidic acid must the 8 L of the solution contain?
Click here to see answer by Alan3354(69443)

Question 1048304: Hew many mL of a 75% sugar solution must be mixed with 3mL of pure water to make a 30% solution.
Click here to see answer by jorel555(1290)

Question 1048487: On a test 25% of all students missed a particular question. If 8 people missed the question, how many students took the test ?
Click here to see answer by ewatrrr(24785)

Question 1048566: Maria bought seven boxes . A week later half of all her boxes were destroyed in a fire . There are only now 22 boxes left . With how many did she start with
Click here to see answer by ewatrrr(24785)

Question 1048565: Maria bought seven boxes . A week later half of all her boxes were destroyed in a fire . There are only now 22 boxes left . With how many did she start with
Click here to see answer by ewatrrr(24785)

Question 1048585: You need 560 mL of alcohol solution. On hand, you have a 15% alcohol mixture and a 55% alcohol mixture. How much of each mixture will you need to obtain the desired solution?
Click here to see answer by josgarithmetic(39617)

Question 1048642: The buildings in a factory depreciate at the rate of 2.5% per year. Hence the value A of the factory buildings after t years and a depreciation rate of r% can be modelled by: A = P * R^t where R = 1 - (r/100)
The factory buildings were initially valued at $450000
i) After how many years will the factory buildings be valued at half of their original value?
ii) If the rate of depreciation is changed to half of the original rate after eleven years, then how many more years will it take for the value of the factory buildings to have reduced to half their original value?
Click here to see answer by Theo(13342)

Question 1048722: How many liters of a 9% solution of salt should be added to a 27% solution in order to obtain 1062 liters of a 15% solution?
Click here to see answer by ankor@dixie-net.com(22740)

Question 1048774: A drink is one-third syrup and the rest water. If six ounces of water were added, it would become 20% sure. How many ounces of total liquid (water plus syrup) were in the original mixture?
Click here to see answer by josmiceli(19441)

Question 1048846: How many fluid ounces of a 60% saline solution must be mixed with a 75% saline solution to get 100 fluid ounces of a 72% solution? You will need 15, 20, 24, or 30 fluid ounces?
Click here to see answer by josgarithmetic(39617)

Question 1048845: In a chemistry class, 24 gallons of a 12% saline solution must be mixed with a 20% saline solution to get a 14% saline solution. How many gallons of the 20% solution are needed? 5,6,8, or 10.5 gallons?
Click here to see answer by josgarithmetic(39617)

Question 1048847: Suppose I mix two saline solutions, one of 30% concentration and the other of 50% concentration. Which concentration could not be obtained?
35%, 40%, 49%, or 53%?
Click here to see answer by josmiceli(19441)

Question 1048925: there are 8L of alcohol in a mixture of 24L of alcohol and water. How many liters of water must be added to make a mixture that is 50% alcohol?
Click here to see answer by Alan3354(69443)

Question 1048933: A chemical company makes two brands of antifreeze. The first brand is
55% pure antifreeze, and the second brand is 95% pure antifreeze. In order to obtain 160 gallons of a mixture that contains 85% pure antifreeze, how many gallons of each brand of antifreeze must be used?
I'm assuming x+y=160 and .55+.95=.85 but the answer doesn't make sense to me.
Click here to see answer by josmiceli(19441)

Question 1048924: An automobile radar contains 12L of a mixture of water and antifreeze. The mixture is now 20% antifreeze. How much of the mixture must be drawn off and replaced by pure antifreeze to get a mixture containing 30% antifreeze?
Click here to see answer by josgarithmetic(39617)

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