Questions on Word Problems: Mixtures answered by real tutors!

Tutors Answer Your Questions about Mixture Word Problems (FREE)

Question 606784: How many pounds of copper is in a bike?
Click here to see answer by richwmiller(9135)

Question 606766: Ellie has 20 pounds of nut mix at her store. The mix contains 10% walnuts. She wants to add walnuts to the mix so that it becomes 25% walnuts. How many pounds of walnuts must Ellie add?
Click here to see answer by richwmiller(9135)

Question 606614: A 5-quart solution of sulfuric acid and water is 60% acid. If a gallon of water is added, what percent of the resulting solution is acid?
A)3%
B)33 1/3%
C)40%
d)48%
E)50%
Click here to see answer by ankor@dixie-net.com(15645)

Question 606893: A beaker contains 20mL of a solution that is 12% cetyl alcohol, a moisturizer often found in shampoo. How much of a solution that is 45% CEA should be added, so that the final mixture is 30% CEA?
Click here to see answer by stanbon(57282)

Question 606882: 2 m³ of soil containing 35% sand was mixed
into 6 m³ of soil containing 15% sand. What
is the sand content of the mixture?
Click here to see answer by Alan3354(30993)

Question 606984: how many ml of that is 10% alcohol must be added to a 500 ml wine of 5% alcohol to make a wine that is 7.5% alcohol?
Click here to see answer by mananth(12270)

Question 607053: how many ounces of 5% alcohol solution must be mixed with 16 ounces of 10% alcohol solution to make a 7% alcohol solution?
Click here to see answer by lwsshak3(6484)

Question 607091: How much 87-octane gas and 93-octane gas should Kelsey mix in order to make 12 gal of 91-octane gas for her Legacy?
Click here to see answer by scott8148(6628)

Question 607101: Could you show me how to work this problem step by step. How many liters are in 60 ounces
Click here to see answer by Alan3354(30993)

Question 606963: How many quarts if a 40% alchohol solution must be mixed with 3 quarts of pure water to make a 28% solution?

This is what I am doing but I am getting a negative answer:
(3*1)+(x*.3)=(3+x*.28)
Click here to see answer by ankor@dixie-net.com(15645)

Question 607291: There’re three brand of fertilizers A, B, and C. Following is a table of the amount of nitrogen, phosphorus,
and potassium in a box of each brand (in lb).
Brand A B C
N 1 2 2
P 2 1 2
K 2 2 1

How many boxes of each brand are needed in order to make a mixture that contains 6 lb of nitrogen, 6 lb of phosphorus and 7 lb of potassium?

Click here to see answer by LisaJ(11)

Question 607463: Jelly is 14% protein Peanut butter is 7 % protein what is 140 lbs mixture that is 11% protein
Click here to see answer by richwmiller(9135)

Question 607539: 100L of a drink that is 28% fruit juice is mixed with a drink that is 40% fruit juice to make a drink that is 36% juice. How many liters of 40% fruit juice should be mixed and how many liters is the 36% juice mixture?
Click here to see answer by alicealc(281)

Question 607580: How many gallons each of 25% and 35 % alcohol should be mixed to obtain 20 gallons of 32% alcohol?
Here's what I think it is. I need to know if I understand this.
35%= x 25% = 20-x
.25(20-x) + .35x = .32(20)
5 -.25x + .35x = 6.4
5 + .1x = 6.5
.1x = 1.4
x = 14 gallons of 35% and 6 gallons of 25% equals 20 gallons of 32%.
Am I understanding how to do this correctly?
Thanks
Click here to see answer by scott8148(6628)

Question 608055: How many cups of grapefruit juice must be added to 20 cups of a punch that is 10% grapefruit juice to obtain a punch that is 25% grapefruit juice? You will impress me extra, if you include your work. Hint: you do not end with twenty cups of punch.
Click here to see answer by scott8148(6628)

Question 608218: mary is using a 2oz cup to fill a 1gallon thermmos with milk how many times will mary need to fill the cup show me the work
Click here to see answer by solver91311(16872)

Question 608306: Cannot use calculator in class what is the best way to work out (0.08)4power
Click here to see answer by stanbon(57282)

Question 608336: can some one help me solve this problem? A chemistry experiment requires 60 mL of a 40% alcohol solution. the lab has an 80% alcohol solution and a 30% alcohol solution. how many mL of the two solutions should be mixed to obtain 60 mL of a 40% alcohol solution?
Click here to see answer by stanbon(57282)

Question 608429: A chemist has 500 liters of a 60% solution of silver nitrate. How many liters of a 30% silver nitrate solution should be added to obtain a 50% solution.
Click here to see answer by nerdybill(6951)

Question 608433: How many liters of a 75% acid solution must be added to 30 liters of a 15% acid solution to produce a 50% solution.
Click here to see answer by nerdybill(6951)

Question 608442: what will be volume if we convert 20 percent 20 ml sugar solution into 15 percent sugar solution ??
Click here to see answer by lwsshak3(6484)

Question 608762: Why does is gravity on earth it would be better if we could bounce around

thanks molly
Click here to see answer by Alan3354(30993)

Question 608762: Why does is gravity on earth it would be better if we could bounce around

thanks molly
Click here to see answer by Edwin McCravy(8893)

Question 608819: You have 2 mixtures of a saline solution that are 12% by volume, and 20% by volume. You need 6 gallons of a solution that is 18% by volume for an experiment. How much of the 12% and the 20% solutions should you mix together?
Click here to see answer by mananth(12270)

Question 608842: A photographer wants to mix 4 liters of 3% solution with a 10% solution to get a 7% solution. How many liters of 10% solution must be added?
Click here to see answer by richwmiller(9135)

Question 609069: A solution containing 30% insecticide is to be mixed with a solution contains 50% insecticide to make 200 L of a solution contains 42% insecticide. How much of each solution should be used?
Click here to see answer by richwmiller(9135)

Question 609196: a chemist must mix 6 liters of a 30% acid solution with some of an 80% solution to get a 50% acid solution. How many liters of the 80% solution should be used.
I think I have the equation set up correctly:
0.80x + 0.30*6=0.50(x+5)
but i honestly don't know how to go from there.

Click here to see answer by ankor@dixie-net.com(15645)

Question 609155: find how many quarts of 6% butterfat milk and 3% butterfat milk should be mixed to yield 75 quarts of 5% butter milk?
Click here to see answer by math-vortex(472)

Question 609236: Andy paid $1.40 for 4 grapefruits. How many grapefruits can he buy with $2.10?
Click here to see answer by rfer(12654)

Question 609319: how many gallons of a 80% antifreeze solution must be mixed with 100 gallons of 10% antifreeze to get a mixture that is 70% antifreeze
Click here to see answer by stanbon(57282)

Question 609673: a swimming pool can be filling in 11 hours if a water enters through a pipe alone, or in 21 hours if water enters through a hose alone. If water enter through both the pipe and the hose, how long will it take to fill the pool?
Click here to see answer by flame8855(424)

Question 609880: I have a 35% solution and need a 3% solution. How much water do i add to obtain a 3% solution?
Click here to see answer by stanbon(57282)

Question 609986: One pipe can fill a tank in 5 hours. Together with a second pipe, the tank can be completely filled in 2 hours. If x is the amount of time for the second pipe to fill the tank alone, then what would the equation be used to solve for the time x
Click here to see answer by scott8148(6628)

Question 610152: A kid bought a slushy at Knott's Berry Farm a 9qt. of a 5% sugar solution was mixed with a 11qt. of the 45% sugar solution. What is the concentration of the mixture?
Click here to see answer by flame8855(424)

Question 610060: a chemist has 5 liters of a certain solution that is 70 percent salt. how much water should be added to make a new solution that is only 50% salt?
Click here to see answer by flame8855(424)

Question 610144: how many ounces of pure silver should be added to 80 ounces of 75% pure, to obtain a mixture of 80% pure ?
Click here to see answer by flame8855(424)

Question 610246: 300 gms of sugar solution contains 40% sugar. How much sugar should be added to make it 50% sugar solution?
Click here to see answer by Earlsdon(6287)

Question 610223: Mixed word problems – Carroll
Click here to see answer by richwmiller(9135)

Question 610357: The Royal Fruit Company produces two types of fruit drinks. The first type is 65% pure fruit juice, and the second type is 85% pure fruit juice. The company is attempting to produce a fruit drink that contains 80% pure fruit juice. How many pints of each of the two existing types of drink must be used to make 100 pints of a mixture that is 80% pure fruit juice?

Click here to see answer by lwsshak3(6484)

Question 610468: How many liters of 15% acid and 33% acid should be mixed to make 40 liters of 21% acid solution ?

Click here to see answer by Alan3354(30993)

Question 610689: how many ml of water must be added to 50ml of 75% acid solution to make a 15% acid solution?
Click here to see answer by josmiceli(9664)

Question 611045: If you get 5 Pineapples for $2.50, how many Pineapples you will get for $4.50 ?
Click here to see answer by stanbon(57282)

Question 611045: If you get 5 Pineapples for $2.50, how many Pineapples you will get for $4.50 ?
Click here to see answer by Maths68(1474)

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