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Question 843966: A baker mixes a 21-pound batch of dough that contains 3 pounds of sugar. Approximately how many pounds of sugar must be added for the dough to contain 27% sugar?

A. 2.7
B. 3.1
C. 3.6
D. 4.2
Click here to see answer by josmiceli(19441)

Question 843683: A pharmacist is preparing a 300-milliliter solution of 25% alcohol. If she has 15% and 45% alcohol solutions in stock, how much of each must she use?
Click here to see answer by Fombitz(32388)

Question 844082: How many quarts of pure antifreeze must be added to 2 quarts of a 30% antifreeze solution to obtain a 40% antifreeze solution?
Click here to see answer by ewatrrr(24785)

Question 844202: How many milliliters of 40% ethyl alcohol can be prepared from 135 milliliters of 95% ethyl alcohol? Round to the nearest hundredth.

A 40% ethyl alcohol solution is used to make 250 mL of a 10% ethyl alcohol solution. Put units on your answers with no spaces.
-Determine the amount of 40% ethyl alcohol to be used.
-Determine the amount of distilled water to be used to bring the volume to 250mL.

Click here to see answer by josgarithmetic(39617)

Question 844196: A new edition of a video game cost $60, but its previous version only cost $40. If 15 games are sold for $840, how many copies of the newest game sold?

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Question 844332: find the smallest value of 4x^2+4x , if x is real number.
Click here to see answer by Alan3354(69443)

Question 844449: A product costs $30.00 for 10 pounds.How much doest it cost per ounce?
Click here to see answer by Fombitz(32388)

Question 844507: Acidic solution word problems with percentage .
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Question 844689: A scientist has 100 grams of a substance where half of it decays every hour. Write an equation to determine how long it takes until 25 grams are remaining
Click here to see answer by ewatrrr(24785)

Question 844671: A 25% iodine solution is to be mixed with a 75% iodine solution to produce 5 gallons of a 70% iodine solution. How many gallons of each solution are needed?
I wrote 2 equations, but got an unreasonable answer. Now I'm not really sure what to do. My equations were: x+y=5 and 0.25x + 0.75y= 0.70.
Click here to see answer by ewatrrr(24785)

Question 844723: b.Susie can cover 400 m in 45 seconds, while Raymond can cover 300 m in 33 seconds. By finding the rate at which each can run, determine the faster runner.
Click here to see answer by ewatrrr(24785)

Question 844722: I'M HAVING TROUBLE WITH THIS:
A mixture of nuts contains peanuts and cashews in the ratio of 5 : 1 in mass in the ratio of peanuts : cashews. Find the amount of each nut that would be required to fill a container that can hold a mass of 300 grams.

Click here to see answer by ewatrrr(24785)

Question 844801: How much water must be evaporated from a 200 gallon solution that is 30% acid to obtain a solution that is 40% acid?

Click here to see answer by ankor@dixie-net.com(22740)

Question 844850: laura and dan use a metal alloy that is 21% copper to make jewelry. how many ounces of a 19% alloy must be mixed with a 25% alloy to form 78 ounces of the desired alloy
Click here to see answer by richwmiller(17219)

Question 844844: How much forty-eight percent hydrochloric acid solution must be mixed with a thirty percent solution to make forty milliliters of thirty-eight percent acid solution?
Click here to see answer by richwmiller(17219)

Question 844891: The manager of a bulk foods establishment sells a trail mix for $5 per pound and a premium cashews for $13 per pound. The manager wishes to make a 96 pound trail mix cashew mixture that will sell for $10 per pound. How many pounds of each should be used?
Click here to see answer by josgarithmetic(39617)

Question 844890: How much pure acid should be mixed with 4 gallons of a 50% acid solution in order to get an 80% acid solution?
Click here to see answer by josgarithmetic(39617)

Question 844889: A chemist needs 160 milliliters of a 22% solution but has only 15% and 31% solutions available. Find how many milliliters of each that should be mixed to get the desired solution.
Click here to see answer by Alan3354(69443)

Question 844956: How many gallons of a 12% salt solution must be mixed with 35 gallons of a 28% solution to obtain a 20% solution?
Click here to see answer by richwmiller(17219)

Question 843773: Need 5 ounces of a solution that is 65% acid and 35% distilled water. There is no undiluted acid in the chemistry lab, but they do have 2 flasks of diluted acid. Flask A contains 70% acid and 30% distilled water. Flask B contains 20% acid and 80% distilled water.
A. write a system of equations that could be used to determine how many ounces they need to pour from each flask to make their solution.
B. Solve your sytem of equations . How many ounces from each flask do we need?
thanks for your help
Click here to see answer by richwmiller(17219)

Question 844603: How much pure acid is in 780 milliliters of a 17% solution?
Click here to see answer by richwmiller(17219)

Question 844963: acid 'a' is 30% acid. acid 'b' is 70% acid. How much of each should be mixed to make 40 ml of a 45% acid?.
Click here to see answer by Theo(13342)

Question 845004: Stella wishes to create a new punch for her party. In one pitcher she has a punch that is 60% pure fruit juice. In a second pitcher, she has a punch that is 10% pure fruit juice. How much of each mixture does she need to create 20 liters of punch that is 50% pure fruit juice.
Click here to see answer by ewatrrr(24785)

Question 845000: Two types of milk, one that has 1.5% butterfat, and the other that has 4.5% of butterfat, are mixed. How many liters of these two different kinds of milk are to be mixed together to produce 100 liters of low-fat milk, which has 2.5% butterfat?
Click here to see answer by richwmiller(17219)

Question 845168: one alloy is 50% silver and another is 20% silver. How much of each alloy is needed to make 100 kilograms of alloy which is 45% silver?
Click here to see answer by Alan3354(69443)

Question 845398: how much water should be mixed with 15 gallons of a 16% alcohol solution to obtain a mixture that is 12%?
Click here to see answer by josgarithmetic(39617)

Question 845336: I am t an even number between 624 and 630. I have more than 6 ones. what number am I ?

Click here to see answer by fcabanski(1391)

Question 845565: How many pounds of chamomile tea that costs $4.20 per pound must be mixed with 12 lb of orange tea that costs $2.25 per pound to make a mixture that cost $3.40 per pound?
Click here to see answer by ewatrrr(24785)

Question 845611: How much $3 coffee must be added to $10 coffee to create 50 pounds of coffee that can be sold for $5(round to nearest pound)

Click here to see answer by ewatrrr(24785)

Question 845624: a rectangle has an area of 48 units squared and a perimeter of 32 units. Find the length and width of the rectangle
Click here to see answer by ewatrrr(24785)

Question 845894: A solution contains 15% chemicals. How many litters of the solution must be mixed with another solution with 10% chemicals to make 10 litters of solution containing 12% chemicals?
Click here to see answer by josgarithmetic(39617)

Question 845977: How many liters of a 50% acid solution must be added to 16 liters of a 30% acid solution to produce a 35% acid solution?
I put (.50)(L)+ (.30)(16)=.35(16+L)
multiplied each by 100
50L + 48000 = 560 + 35L
50L - 35L + 4800 = 560
15L + 4800 = 560
15L = -4240
L = -282.6
I know I am way off and need assistance.
Click here to see answer by Fombitz(32388)

Question 845982: You and a friend have to split up the treasure chest worth $4235. You are three years older than your friend. Ypu decide that you should get $675 dollars more than your friend. How much does each of you get BEFORE taxes?
Click here to see answer by Fombitz(32388)

Question 845984: You order the combo plate of fish and chips at lunch for $16. If you had bought them as seperate orders, the fish would have cost three times as much as the fries. What would the cost of the fries have been?

Click here to see answer by stanbon(75887)

Question 846073: How much of an alloy that is 30% copper should be mixed with 400 ounces of an alloy that is 70% copper in order to get an alloy that is 50% copper?
Click here to see answer by richwmiller(17219)

Question 846160: How much water should be added to 3 gallons of pure alcohol in order to make a solution that is 15% alcohol
Click here to see answer by richwmiller(17219)

Question 846138: How many liters of each .5% saline solution and 2% saline to produce 10 liters of .9% saline?
I tried this using decimals but it came out to a negative number. I have the answer in the book but it is in fractions. Thank you!
Click here to see answer by lwsshak3(11628)

Question 846280: You shop for milk and bread based on the weather report for a total of $72. Milk is $6 and the bread cost $3. You buy twice as much bread than milk. How much milk did you buy?
Click here to see answer by stanbon(75887)

Question 846370: how much 30% solution and 80% solution need to be mixed to make 500ml of a 60% solution
Click here to see answer by richwmiller(17219)

Question 846462: I need to calculate a mixture of 2 products:
Mixture A = 58% of B + 42% of C
A B C are all volumes in liters
B is a known value.
How do I calculate C

Click here to see answer by KMST(5328)

Question 846463: How many gallon of plant food that is 9% nitrogen must be combine with another plant food that is 25% nitrogen to make 10 gallons of a solution that is 15% nitrogen?
Click here to see answer by richwmiller(17219)

Question 846530: Find how many quarts of 5% butterfat milk and 1% butterfat milk should be mixed to yeild 40 quarts of 2% butterfat milk
Click here to see answer by ewatrrr(24785)

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