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Question 914994: James needs to mix a 10% alcohol solution with a 40% alcohol solution to create 100 milliliters of a 37% solution. How many milliliters of each solution must James use?
Click here to see answer by richwmiller(17219)

Question 915062: Pleaseee i neeed help with this
If we add 2 gallons of water to a 40 % alcohol solution, we get a 35% solution.
How many gallons of the solution did we have initially?
and
Ashley ate 5 slices of pizza. Tiffany ate 2 (equal) slices. If Ashley ate 10/16
of the pizza, what fraction of the pizza was eaten?

Click here to see answer by josgarithmetic(39617)

Question 915149: Two music CDs and four music cassette tapes cost a total of $40.00. However, three music CDs and five cassette tapes cost $55.00. Find the price of each.
So lost with this problem, please help.
Thanks.
Click here to see answer by lwsshak3(11628)

Question 915441: Britney jars 3 liter of jam everyday. How many days did Britney spend making jam if she jarred 24 liters of jam?

Click here to see answer by ewatrrr(24785)

Question 915630: A solution contains 11 pints of antifreeze and 8 pints of water. How many pints of water must be added to 44 pints of antifreeze to get a solution with the same concentration?
Click here to see answer by josmiceli(19441)

Question 915699: How many ounces of glycerin must be added to 50 ounces of a 75% solution to make it an 80% solution?
Click here to see answer by josgarithmetic(39617)

Question 915702: Forty gallons of a 60% acid solution is obtained by mixing a 75% solution with a 50% solution. How many gallons of each solution must be used to obtain the desired mixture?
Click here to see answer by josgarithmetic(39617)

Question 915791: If sales tax is 4%, how much tax should be applied to the purchase totaling $4.50
Click here to see answer by ewatrrr(24785)

Question 915878: A grocer wants to mix two kinds of coffee. One kind sells for $2.15 per pound and the other sells for 2.45 per pound. He wants to mix a total of 18 pounds and sell it for $2.30 per pound. How many pounds of each kind should he use in the new mix?
Click here to see answer by AlgebraLady88(44)

Question 915975: What quantity, x, of a 30% acid solution must be mixed with a 35% acid solution to produce 5000mL of a 31.5% solution?

Click here to see answer by lwsshak3(11628)

Question 916099: You need a 25% alcohol solution. On hand, you have a 100 mL of a 70% alcohol mixture. How much pure water will you need to add to obtain the desired solution?
A) Write an equation using the information as it is given above that can be used to solve this problem. Use x as your variable to represent the amount of pure water you need to use.
Equation:_______________________________
B) You will need____mL of pure water
c)to obtain____mL of the desired 25% solution.
Click here to see answer by josgarithmetic(39617)

Question 916222: A data conversion service converts old print books to Microsoft Word electronic files for $15 per book plus $1.25 per page. If it cost $702.50 to convert a novel, how many pages did the novel have?
Click here to see answer by ewatrrr(24785)

Question 916231: 7/8m-t=9b for m
Click here to see answer by stanbon(75887)

Question 916218: A printer has ink that is 18% cobalt blue color and ink that is 22% cobalt blue color. How many ounces of each ink are needed to make 2 gallons (256 ounces) of ink that is 20% cobalt blue color?
Click here to see answer by Alan3354(69443)

Question 916247: I need to mix (flour)4:1 (water) in grams weight
Click here to see answer by Alan3354(69443)

Question 916539: If 1 hr = 60%; 2 hrs= 75%; 4 hrs = 90% ... how many hours would it take for 85%
Click here to see answer by ewatrrr(24785)

Question 916558: Henry bought 32 CDs and DVDs for $1010. The CDs cost $25 each and the DVDs cost $40 each, How Many more CDs than DVDs did he buy.
Click here to see answer by ewatrrr(24785)

Question 916676: I need help on this word problem :
" You have 2 containers of chocolate milk, one that is 20% chocolate syrup and the other 50% chocolate syrup. If you need to mix them to create an 8oz glass of chocolate milk that consists of 40% chocolate syrup, how man ounces from each container do you use? "
Click here to see answer by Alan3354(69443)

Question 916867: Twenty ounces of a 50% gold alloy are mixed with 80 oz of a 30% gold alloy. Find the percent concentration of the resulting gold alloy.
Find the cost per ounce of a gold alloy made from 25 oz of pure gold that costs $1286 per ounce and 45 oz of an alloy that costs $920 per ounce. (Round your answer to the nearest cent.)
Find the cost per pound of a "house blend" of coffee that is made from 16 lb of Central American coffee that costs $8 per pound and 34 lb of South American coffee that costs $5.50 per pound.
Find the cost per ounce of a mixture of 280 oz of a cologne that costs $6.50 per ounce and 420 oz of a cologne that costs $6.00 per ounce.
Click here to see answer by stanbon(75887)

Question 916957: Can you help me solve this problem. A container holds 3 liters of a 25 % alcohol solution. One half liter of the solution is withdrawn and replaced with one half liter of pure alcohol. What is the percentage of alcohol in new mixture ?
Click here to see answer by mananth(16946)

Question 917129: please help me with this word problem : when 400 people are surveyed 100 tick the box yes, what proportion of people said yes
Click here to see answer by ewatrrr(24785)

Question 917169: How much pure acid is in 520 milliliters of a 18% solution
Click here to see answer by ewatrrr(24785)

Question 917030: a merchant wishes to mix two kinds of peanuts costing $120 per kilo and $160 per kilo to obtain 140 kilos of mixture costing $240 per kilo. If the merchant wants the amount of the cheaper peanuts to twice that of the more expensive peanuts, how many kilos of each varieties should be.
Click here to see answer by ankor@dixie-net.com(22740)

Question 917232: How much pure acid is in 500 milliliters of a 14% acid solution?
Click here to see answer by stanbon(75887)

Question 917242: What is the monetary amount of 497 nickels and 89 half-dollars?
Click here to see answer by jim_thompson5910(35256)

Question 917243: Macy wants to change 18 quarts of an 8% solution of ammonia to a 6% solution by adding pure water. How much pure water must she add?
Click here to see answer by stanbon(75887)

Question 917265: Suppose that there are two types of tickets to a show: advance and same-day. The combined cost of one ticket and one same-day ticket is $50. For one performance, 30 advance tickets and 25 same-day tickets were sold. The total amount paid for the tickets was $1,325. What is the price of each kind of ticket.
Click here to see answer by josgarithmetic(39617)

Question 917248: Chemistry A scientist wants to make 6 milliliters of a 30% sulfuric acid solution. The solution is to be made from a combination of a 20% sulfuric acid solution and a 50% sulfuric acid solution. How many milliliters of each solution must be combined to make the 30% solution?
Click here to see answer by mananth(16946)

Question 917345: how many pounds of peanuts costing $1.75 per pound must be combined with
cashews costing $3.50 per pound in order to obtain a 42-pound mixture that costs $2.50 per pound? Your answers may be decimals, but they must be exact.
Pounds of Peanuts = ___________________
Pounds of Cashews = ___________________
Click here to see answer by mananth(16946)

Question 917346: how many liters of pure water must be combined with an 18-liter mixture that is
24% acid in order to obtain a mixture that is 15% acid? Your answer may be a
decimal number, but it must be exact.
Answer: ________________________________
Click here to see answer by mananth(16946)

Question 917386: how many liters of 5% acid should be combined with a 15-liter mixture that is 30% acid in order to obtain a mixture that is 10% acid? your answer may be a decimal number, however it must be exact.
Click here to see answer by richwmiller(17219)

Question 917447: How many pounds of peanuts costing $3.00 a pound should be mixed with 4 pounds of cashews costing $4.50 a pound to obtain a mixture costing $3.50 a pound?
Click here to see answer by stanbon(75887)

Question 917483: how many ounces of a 4% acid solution and how many ounces of a 10% acid solution must be mixed to make 24 ounces of a 6% acid solution?
Click here to see answer by richwmiller(17219)

Question 917525: In the student council election Alexis received 58 more votes than Courtney. Together they received 268 votes. How many votes did each get?
Click here to see answer by rfer(16322)

Question 917803: How many litres of a 68% concentration nitric acid should be diluted with 400 litres of water to give a solution with 3% concentration of nitric acid??

Click here to see answer by richwmiller(17219)

Question 917822: A scientist wants to make 6 milliliters of a 30% alcohol solution. The solution is to be made from a combination of a 20% alcohol solution and a 50% alcohol solution.
a. Write a system of two equations that model this situation (Define variables)
b. How many milliliters of each solution must be combined to get 6 milliliters of 30% alcohol solution?
Click here to see answer by richwmiller(17219)

Question 918045: how many ounces of a 26% alcohol solution and a 32% alcohol solution must be combined to obtain 34 ounces of a 29% solution?
Click here to see answer by josgarithmetic(39617)

Question 918019: Kimberly Fields has $25,000 invested in two accounts, part at 8.5% simple interest and part at 4% simple interest for a period of 1 year. How much did she invest at each rate if each account earned the same interest?
Click here to see answer by richwmiller(17219)

Question 918193: how much water should be added to 24mL of 13% alchol solution to reduce the concentration to 12%
Click here to see answer by josmiceli(19441)

Question 918166: how many gallons of gasoline that is 8% ethanol must be added to 2000 gallons of gasoline that is 5% ethanol to get a mixture that is 6% ethanol?
Click here to see answer by richwmiller(17219)

Question 918513: A chemist wants to get 120 mL, of a 87% solution. If she has to make it by mixing a 80% solution and a 92% solution, how much of each should she use?
I have x=80% solution and y- 92% solution.
The last question our instructor used was: A chemist has to prepare a large amount of 35% acid solution for an experiment. He has 37 L of 60% solution to combine with some amount of 25% solution. How much 25% solution should he use, and how much 35% solution will that allow him to create?
I had x=Litres of 25% solution which was 92.50; and y= Litres of 35% solution and i got 129.5!
So I am at a loss as how to solve this equation

Click here to see answer by josgarithmetic(39617)

Question 918964: Peanuts cost $4 per pound and a bag of raisins costs $8. How many pounds of peanuts must be mixed with the bag of raisins to have a peanut-raisin blend that has a value of $48?
Click here to see answer by josgarithmetic(39617)

Question 919075: the price of electric iron is rs 500.if there is a decrease of 12% in the price.what will be the new price?
Click here to see answer by master kondwani(1)

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