Questions on Word Problems: Mixtures answered by real tutors!

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Question 370688: if 3/4 cup of snack food gives you your daily value of calcium, than what fraction of your daily value of calcium is in 1 cup of the snack food?
Click here to see answer by stanbon(75887)

Question 370854: Tell if the given situation is possible or not possible; then explain why or why not.:You start with a solution containing 8% alcohol and add pure water to it. You ending solution is 20% alcohol.
Click here to see answer by ankor@dixie-net.com(22740)

Question 370860: Give an example of a solution you could add to achieve the desired result. Then explain why that solution would work.: You have a 68% alcohol solution. You want to end up with a solution containing 50% alcohol.
Click here to see answer by ankor@dixie-net.com(22740)

Question 371004: How much water must be added to 12 L of a 10% solution of salt in water to obtain a 6% solution?
Click here to see answer by Fombitz(32388)

Question 371177: The sum of the digits of a two-digit number is 7. If 9 is subtracted from the number, the answer will be a number with the digits reversed. Find the number.
Click here to see answer by jvan(28)

Question 371213: In solving mixture problems in algebra, is it always true that water is 0% while a pure acid is 100%? (ex: How many grams of a pure acid solution must be added to a 36g of a 49% solution to produce a 50% solution?.. In this example, will 'pure acid' be denoted as 100%?) Thank you. =)
Click here to see answer by ankor@dixie-net.com(22740)

Question 371376: solution A 30% acid, solution B is 100% acid. How many liters should be combined to make 28 liters of a solution that is 50%acid?
X + Y = 28
30% 100%=50%
30x 100y 50% of 24 liters <
Click here to see answer by Alan3354(69443)

Question 371608: How many grams of salt must be added to 80 grams of a 22% salt solution to obtain a 40% salt solution? show work.
Click here to see answer by checkley77(12844)

Question 371779: A 30% acid solution is to be mixed with a 50% acid solution to get 100 milliliters of a 35% acid solution. How many milliliters of 30% are needed
Click here to see answer by amoresroy(361)

Question 371724: a 15% solution of alcohol is to be mixed with a 40% solution to get 50 liters of a final mixture that is 30% alcohol. how much of each of the oiginal solutions should be used?
Click here to see answer by mananth(16946)

Question 371797: A 20 oz. Alloy of platinum that costs $220 per ounce is mixed with an alloy that costs $400 per ounce. How many ounces of the $400 alloy should be mixed with the 20 oz. Alloy to make an alloy that costs $300 per ounce?
Click here to see answer by Fombitz(32388)

Question 371908: John is traveling to a meeting that is 28 miles away. He needs to be there in 30 minutes. How fast does he need to go to make it to the meeting on time?
Click here to see answer by stanbon(75887)

Question 371909: HOW MANY ML OF 15% SOLUTION ARE NEEDED TO MAKE 1 GALLON OF 10% SOLUTION?
Click here to see answer by stanbon(75887)

Question 371905: Jim can fill a pool carrying buckets of water in 30 minutes. Sue can do the same job in 45 minutes. Tony can do the same job in 1 � hours. How quickly can all three fill the pool together?

Click here to see answer by ewatrrr(24785)

Question 372030: Anne and Nancy use a metal alloy that is 17% copper to make jewelry. How many ounces of a 14% alloy must be mixed with a 25% alloy to form 77 ounces of the desired alloy?

Click here to see answer by Fombitz(32388)

Question 372049: Two pipes are filling a pool. one of them can fill the pool alone in 18hrs. The other can fill the pool alone in 12hrs. How long will it take them working together to fill the pool?
Click here to see answer by ewatrrr(24785)

Question 372093: How much of a 50% solution would have to be added to a 20% solution to make 24 liters of a 30% solution ?

Click here to see answer by ewatrrr(24785)

Question 372134: Keyshawn sold 184 baseball cards in june. he sold 92 more than in july. how many cards did he sell in all?
Click here to see answer by checkley79(3341)

Question 371757: how many pounds of coffee woth 16 cents a pound must be mixed with 20 pounds of coffee worth 25 cents a pound in order to have a mixture worth 18 cents a pound?
Click here to see answer by scott8148(6628)

Question 372468: What is the speed of a plane that travels at a rate of 540 mph against a wind of r mph?
Click here to see answer by mananth(16946)

Question 372467: Suppose that x liters of 30% acid solution are mixed with y liters of a 43% solution to obtain 100 L of a 40% solution. One equation is a system for solving this problem is x+y = 100. Which of the following is the other equation?
a. 0.43x+0.30y = 0.40*100
b. 30x+43y = 40
c. 0.30x+0.43y = 0.40*100
d. 43x+30y = 0.40*100
Click here to see answer by mananth(16946)

Question 372630: How many liters of a 40% glycerin solution must be mixed with 10 liters of an 80% glycerin solution to obtain a 65% solution?
Click here to see answer by Fombitz(32388)

Question 372670: A dehydrated patient needs a 6.4% saline IV. Unfortunately, the hospital only has bags of 6% and 8% saline solutions. How many liters of each of these solutions should be mixed together to yield 1 liter of the desired concentration?
Click here to see answer by ewatrrr(24785)

Question 372702: A candy store sells boxes of candy containing caramels and cremes. Each box sells for $12.50 and holds 30 pieces of candy (all pieces are the same size). If the caramels cost $0.25 to produce and the cremes cost $0.45, how many of each should be in a box to make a profit of $3?
Click here to see answer by ankor@dixie-net.com(22740)

Question 372956: I need help with this problem please, - 1/2 - (-5/8) I am stumped!
Thank you ahead of time
Blaine
Click here to see answer by ankor@dixie-net.com(22740)

Question 373242: A pharmacist is to prepare 18 milliliters of special eye drops for a glaucoma patient. The eye drop solution must have a 5% active ingredient, but the pharmacist only has 13% solution and 3% solution in stock.
a) How much of the 13% solution should be used in the prescription?
b) How much of the 3% solution should be used in the prescription?
Click here to see answer by edjones(8007)

Question 373345: how many 1/2 dozen (half dozen)cans are there in 4236 cans?
Click here to see answer by rfer(16322)

Question 373434: $9500 is invested, part of it at 10% and part of it at 8%. For a certain year, the total yield is $878.00. How much was invested at each rate?
How much was invested at 10%?
How much was invested at 8%?
Click here to see answer by josmiceli(19441)

Question 373362: Please help me solve this mixture problem.
A candy dealer sells 50-cent chocolate bars and $1.00 chocolate bars. One day he sold 130 chocolate bars for which he received $90.00. How many bars of each kind did he sell.
Thank You
Click here to see answer by scott8148(6628)

Question 373503: how many liters of a 20% alcohol solution must be mixed with 30 liters of a 80% solution to get a 40% solution?
Click here to see answer by robertb(5830)

Question 373603: Mixing a 10 percent solution with a 60 percent solution to get 100 grams of a 50 percent solution. How much of each do i need?
Click here to see answer by ewatrrr(24785)

Question 373433: pure acid is to be added to a 5% acid solution to obtain 95L of 68% solution. what amounts of each should be used?
How many Liter of 100% pure acid should be used to make the solution? ____L
How many liters of the 5% solution should be in the mixture? ___L
Click here to see answer by ankor@dixie-net.com(22740)

Question 373698: Janet is mixing a 15% glucose solution with a 35% glucose soution. This mixture produces 35 liters of a 19% glucose solution. How many liters of the 35% solution did Janet use?
Click here to see answer by ewatrrr(24785)

Question 373733: A Chemist mixes distilled water with 70% solution of sulfuric acid to produce a 30% solution. If 12 liters of distilled water is used, how much 30% solution is produced?
Click here to see answer by josmiceli(19441)

Question 373817: In a chemistry lab the concentration of one solution is 10% HCU and that of a second solution is 60% HCI. How many milliliters of each should be mixed to obtain 50 ml of a 30% solution?
Click here to see answer by robertb(5830)

Question 373837: I have 60 mL of a 10% minoxidil solution. How many mL of alcohol would I need to add to the 60 mL of minoxidil to reduce the strength by 1%? 2.5%?
Click here to see answer by josmiceli(19441)

Question 374005: Find the equation of the line that bisects the first quadrant.
Click here to see answer by rfadrogane(214)

Question 374272: How many kilograms of chocolates costing Php80.00 per kilogram must be mixed with 6 kilograms of chocolates that cost Php100.00 per kilogram to produce a mixture that can be sold for Php85.00 per kilogram?
Click here to see answer by Edwin McCravy(20054)

Question 374263: approximately 3 out of every 10 students at Greg's college live on campus. the college has 6,000 students. how many of them live on campus?

Click here to see answer by sophxmai(62)

Question 374772: John travels by train to go home and arrives at the railway station every day at 17h00. His wife travels by car to pick him up at the station and arrives at the station at precisely 17h00. One day John took an earlier train and arrived at the station at 16h00 and was unable to phone his wife. He then started walking home hoping to meet his wife who would be on her way to pick him up. She did pick him up and they arrived home 12 min earlier than normal.
Assuming the wife travels at 60km per hour, how far did John walk?
How far is their home from the station?

Click here to see answer by mananth(16946)

Question 374854: A company plans to make 10 liters of a 17% acid solution by mixing a 20% acid solution and a 15% acid solution. How much of each solution should be used.
Click here to see answer by ewatrrr(24785)

Question 374879: a coffee manufacturer wants to market 100 pounds of a new blend of colffee that costs $3.90 per pound by mixing two coffees that sell for $2.50 and $5.00 per pound respectively. What amounts of each coffee should be blended to obtain the desired mixture?
Click here to see answer by Fombitz(32388)

Question 375068: Please help me slove this word mixture problem.
One canned juice drink is 15% orange juice, another is 5% orange juice. How many liters of each should be mixed together in order to get 10L that is 14% orange juice?
Click here to see answer by robertb(5830)

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