Questions on Word Problems: Mixtures answered by real tutors!

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Question 601890: if 2/3 cups of butter makes 16 brownies then how many cups would I need to make 20 brownies
Click here to see answer by josmiceli(19441)

Question 602315: Chemist mixes 200 ml of solution that is 15% salt with 300 ml that is 40% salt. What percent salt is resulting solution?
Click here to see answer by nerdybill(7384)

Question 602299: Please help me to answer this problem:
There are 40 Liters of 50% acid solution that should be reduced to a 40% acid solution. How much of acid solution must be drained off with distilled water so that the resulting solution contains only 40% acid?
Click here to see answer by mananth(16946)

Question 602423: If 5 quarts are needed to paint, how many gallons and quarts should I buy?
Click here to see answer by solver91311(24713)

Question 602408: Please help me solve this word problem I don't know weather to divide $11,450 into $57,250 or multiply it.Harry pays federal income taxes of $11,450 on an income of $57,250.In the same tax bracket, what would be the tax on an income of $48,000?
Click here to see answer by ewatrrr(24785)

Question 602576: How many kilograms of nuts must be added to 1.8 kg of plain banana bread batter to produce a batter that is 10% nuts.
Click here to see answer by rosey51235(30)

Question 602295: Please Help me answer this problem:
A space heater tank contains 2 Liters of a mixture of water and antifreeze. If 40% of the mixture is antifreeze, how much of the mixture should be drained and replaced with pure antifreeze so that the resultant mixture will contain 60% antifreeze?
Click here to see answer by ankor@dixie-net.com(22740)

Question 602671: An oil change requires 5 quarts of oil and an oil filter, and takes three quarters of an hour to complete. What is the cost of the parts of an oil change?
Click here to see answer by Alan3354(69443)

Question 602395: A statue weighting 80 kg containing 60% iron,15% zinc and rest Aluminium is melted.Now 5% of aluminium is taken out then tell how muck KG of aluminium is requiredto make that statue again.ANswer this question as I have a heated discussion with friends.My email is-ayushgupta2008@gmail.com
Click here to see answer by ankor@dixie-net.com(22740)

Question 602777: You are offered two different jobs selling college textbooks. One company offers an annual salary of $25,000 plus a year-end bonus of 2% of your total sales. The other company offers an annual salary of $20,000 plus a year-end bonus of 3% of your total sales. Determine annual sales required to make the second offer better.
Click here to see answer by richwmiller(17219)

Question 602868: I need help with this word problem please.
A merchant has coffee worth $40 a pound that she wishes to mix with 30 pounds of coffee worth $90 a pound to get a mixture that can be sold for $60 a pound. How many pounds of the $40 coffee should be used?
Click here to see answer by josmiceli(19441)

Question 602719: a garrison has enough food to the last for24 days how much longer will be the food last if each individual ration can be reduced by 20 %
b)by how much each indidual ration to be reduced if the food is to last 40 days
Click here to see answer by ankor@dixie-net.com(22740)

Question 603183: how much pure acid must be mixed into 100ml of 20% acid to create a solution of 60% acid?
Click here to see answer by mananth(16946)

Question 603643: A chemist has a solution that is 60% saline and another solution that is 35% saline. She wants to make 100 ounces of a mixture that will be 40% saline. How many ounces of the 60% saline solution will she use?
Click here to see answer by mananth(16946)

Question 603750: A store sells walnuts for $ 3.00 per pound and pecans for $ 5.00 per pound. How many pounds of each should be used to make a mixture that weighs 10 pounds and costs $ 3.70 per pound?
Click here to see answer by lwsshak3(11628)

Question 603735: A store sells walnuts for 3.00 per pound and pecans for 5.00 per pound. How many pounds of each should be used to make a mixture that weighs 10 pounds and cost 3.70 per pound.
Click here to see answer by alicealc(293)

Question 603942: Juana bought 16 used paperback books for $10.95. Some cost $.60 and the rest cost $.75 each. How many of each did she buy?
Click here to see answer by stanbon(75887)

Question 604181: Joe mixes 10 ounces of metal that contains 30% gold with 20 ounces of a metal that contains 15% gold. What is the percent of gold in the resulting metal?
F. 30%
G. 22.5%
H. 20%
J. 15%
Click here to see answer by alicealc(293)

Question 604135: Tim and Lynne are jogging in opposite directions. They start at the same place and at the same time. Time jogs at a rate of 5 1/2 miles per hour, and Lynne jogs at a rate of 4 3/4 miles per hour. How far apart will they be in 1 1/4 hours?
* I know how to do the problem but don't know how to set it up*
Click here to see answer by alicealc(293)

Question 604450: Lisa will make punch that is 25% fruit juice by
adding pure fruit juice to a 2-liter mixture that
is 10% pure fruit juice. How many liters of pure
fruit juice does she need to add?
Click here to see answer by alicealc(293)

Question 604413: how many kilograms of water must be added to 12kg of a 30% salt solution to produce a 20% solution?
Click here to see answer by alicealc(293)

Question 604601: confuse how to get the equation need help , Microwave popcorn has 125 calories and 3g of fat. A serving of chocolate chips has 70 calories and 4g of fat. How much of each should be mix to make a treat that has 255 calories and 24.6 grams of fat?

Click here to see answer by scott8148(6628)

Question 604709: Bronze which costs $9.10/kg is made by combining copper which costs $8.90/kg with tin which costs $9.50/kg. Find the number of kg of copper and tin required to make 15.3 kg of bronze.
Thank You,
Shubham
Click here to see answer by scott8148(6628)

Question 604822: Tim and Judy mix two kinds of feed for pedigreed dogs. They wish to make 27lbs of feed by mixing one kind worth $0.31 per pound with another worth $0.77 per pound. How many pounds of the cheaper kind should they use.
Click here to see answer by stanbon(75887)

Question 604902: pure acid is to be added to a 10% acid solution to obtain 90L of 51% solution. what amounts of each should be used?
how many liters of 100% pure acid should be used to make the solution?
how many liters of the 10% solution should be used in the mixture?
Click here to see answer by Alan3354(69443)

Question 604984: Recall from Example 1 that whenever Suzan sees a bag of marbles, she grabs a handful at random. She has seen a bag containing four red marbles, three green ones, two white ones, and one purple ones. She grabs five of them. Find the probability of the following event, expressing it as a fraction in lowest terms.
She has at least one white one.
Click here to see answer by lynnlo(4176)

Question 605064: Estimate using fractions.... 39% of 20. I'm not sure how to do this problem and 3 others that are in my math book. 10.5% of 238
Estimate by using 10%.... 20% of 132
37% of 250
Click here to see answer by rfer(16322)

Question 605138: It took ten men 16 days to paint a house. At that same rate, how many men would it have taken to finish paint the house in 10 days
Click here to see answer by ankor@dixie-net.com(22740)

Question 605139: I know this is simple but I tend to forget
What fraction of 45 is 9?
Click here to see answer by rfer(16322)

Question 605166: Algebra: How much of a 14% acid solution should be added to 90 oz. of a 47% solution to get one of 29%?

Click here to see answer by mananth(16946)

Question 605692: how many liters of a 30% acid solution must be mixed with 2 liters of a 12% solution to obtain a 15% solution
Click here to see answer by mathie123(224)

Question 605721: The manager of a farmer's market has 250 lb of grain that costs $1.40 per pound. How many pounds of meal costing $0.80 per pound should be mixed with the 250 lb of grain to produce a mixture that costs $1.05 per pound?

Click here to see answer by nerdybill(7384)

Question 605786: I have a 1000g container of a mixture. The container costs $98.95. We administer 1 1/2 scoops per day. Each scoop is 39 grams. How much does one gram cost. How much does each daily dosage cost?
Click here to see answer by mathie123(224)

Question 605811: John wants to mix a solution containing 10%acid with one containing 15% acid to obtain a 20-ounce solution containing 12% acid. How many ounces of the 10% solution should John use?
email: ninarieroberson@yahoo.com
Click here to see answer by nerdybill(7384)

Question 605828: please help me to solve this problem. Thanks.
If 30 laborers working 7 hours a day can finish a piece of work in 18 days, how many laborers working 6 hours a day can finish it in 30 days?
Click here to see answer by josmiceli(19441)

Question 606141: A pharmacist mixed some 10%-saline solution with some 15%-saline solution to obtain 100 mL of a 12%-saline solution. How much of the 10%-saline solution did the pharmacist use in the mixture?

Click here to see answer by josmiceli(19441)

Question 606225: how much pure acid should be mixed with 5 gallons of a 40% acid solution in order to get a 50% acid solution?
Click here to see answer by mathie123(224)

Question 606183: What mass of glycerol should be mixed with 50 g or water to produce a 6.00% solution?
Click here to see answer by nerdybill(7384)

Question 606636: A small well contains 40 gallons of water. About how many liters is this?
Click here to see answer by lawdej(58)

Question 606636: A small well contains 40 gallons of water. About how many liters is this?
Click here to see answer by Alan3354(69443)

Question 606701: A biologist collected 201 fern and moss samples. There were 85 more moss than fern samples. How many fern samples did the biologist collect?
Click here to see answer by lawdej(58)

Question 606777: Ellie has 20 pounds of nut mix at her store. The mix contains 10% walnuts. She wants to add walnuts to the mix so tht it becomes 25% walnuts. How many pounds of walnuts must ellie add?
Click here to see answer by nerdybill(7384)

Question 606784: How many pounds of copper is in a bike?
Click here to see answer by richwmiller(17219)

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(17219)

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