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Question 573240: what is the density in g/cm cube of a block of wood with a mass of 849g and a volume of 1022 cm cube
Click here to see answer by Alan3354(69443)

Question 573347: how much pints are in 10 gallons?

Click here to see answer by Alan3354(69443)

Question 573496: how many cups of 20% alcohol solution and 15% alcohol solution should be mixed in order to make 8 cups of 18% alcohol solution?
My try:
x+y=8, (x-x+y=8-x)= y+8-x
Let x=0.20
Let y=0.15
0.20x+0.15y= 0.18(8)
0.20x+0.15(8-x)=0.18(8)
0.20x+1.2-0.15x=1.44
0.35x+1.2=1.44
-1.2 -1.2
0.35x=0.24
x=0.68
Click here to see answer by mananth(16946)

Question 573368: 30 gallons of a 20% acid solution is needed for an experiment. Only 40% and 10% acid solution are available. How much of each should be mixed to form the needed solution?
Click here to see answer by ankor@dixie-net.com(22740)

Question 573710: Tank a contains 23 liters of water and tank b contains 1 liter of water. how many liters of water must be poured from tank a to tank b so that tank b will contain exactly one third of the amount of water remaing in tank a
Click here to see answer by Alan3354(69443)

Question 573810: Soybean meal is 14%. cornmeal is 7% protien. How many pounds of eachshouldbe mixed together in order to get 280lb mixture that is 12% protien

Click here to see answer by ptaylor(2198)

Question 573777: How many gallons of 60% antifreeze solution must be mixed with 80 gallons of 30% antifreeze to get a mixture that is 50% antifreeze?
Click here to see answer by ptaylor(2198)

Question 574176: A CHEMIST HAS TWO SOLUTIONS OF H2SO4. ONE HAS 40% CONCENTRATION AND THE OTHER HAS 25% CONCENTRATION. HOW MANY LITERS OF EACH SOLUTION MUST BE MIXED TO OBTAIN 50 LITERS OF A 27% SOLUTION? ROUND TO THE NEAREST TENTH IF POSSIBLE
Click here to see answer by stanbon(75887)

Question 574208: If you have a mixture of 1 oz. of 35% hydrogen peroxide, how much pure water would you add to make a mixture of 17% hydrogen peroxide?
Click here to see answer by ankor@dixie-net.com(22740)

Question 574679: How much coffee costing $6.00 per pound should be mixed with 3 pounds of coffee costing $4.00 per pound to create a mixture costing $4.50 per pound?
I tried every way I could think of to find the answer but I can`t seem to figure it out. Please help and thank you in advance.
Click here to see answer by bucky(2189)

Question 574855: in a class of 85 students, 9 received an A, what fraction did not? then reduce
Click here to see answer by josmiceli(19441)

Question 574952: How much water must be evaporated from 17 qt of a 55% antifreeze solution to produce a 85% solution?
Click here to see answer by josmiceli(19441)

Question 574955: I have H2O2 50% strength, I want to create 25% strength, do I add 50% water???

Click here to see answer by Theo(13342)

Question 575127: Sales of personal computers are expected to increase in the twenty first century. In 2000 and 2001, a combined total of 264 million personal computers were sold worldwide, with 12.9% more computers sold in 2001 than in 2000.How many personal computers were sold in 2000, and how many were sold in 2001? Round yours answers to the nearest million.
Click here to see answer by chana(69)

Question 575233: Im having problems with how to set up the equation(s) for this particular problem.
A Pharmacist needs to obtain a 45% alcohol solution. How many ouncs of a 30% alcohol soultion must be mixed with 40 ounces of an 80% alcohol solution to obtain a 45% alcolol soultion?
Thank you so much
Click here to see answer by nerdybill(7384)

Question 575062: What quantity of a 50% acid solution must be mixed with a 20% solution to produce 150 mL of a 40% solution?
Click here to see answer by KMST(5328)

Question 575449: How many gallons of a 2% salt solution must be mixed with 15 gallons of a 18% solution to obtain a 10% solution?
Click here to see answer by josmiceli(19441)

Question 575479: A wool suit is 75% of $164 what is the suits orignal price?
Click here to see answer by solver91311(24713)

Question 575541: A man bought a cow and a calf for $360, paying eight times as much for the cow
as for the calf. What was the cost of each?
Click here to see answer by Maths68(1474)

Question 575520: Please help me find the function
Two ships leave port at the same time. One sails south at 15 miles per hour and the other sails east at 20 miles per hour. Find a function that models the distance between the ships in terms of time elapsed since their departure.
I have drawn out a picture but im still confused on how to form the function
Click here to see answer by ankor@dixie-net.com(22740)

Question 575774: Deep Thought Granola is 25% nuts and dried fruit. Oat Dream Granola is 10% nuts and dried fruit. How much of Deep Thought and how much of Oat Dream should be mixed to form a 20-lb batch of granola that is 19% nuts and dried fruit?
*I would like to know how to solve the problem step-by-step please. Thank you in advance.
Click here to see answer by lwsshak3(11628)

Question 575957: a coffee house has 20 pounds of a coffee that sells for $4 per pound. How many pounds of a coffee that sells for $8 per pound should be mixed with the 20 pounds of $4 per pound coffee to obtain a blend that will sell for $5 per pound? How much of the $5 per pound coffee is there to sell?
Click here to see answer by josmiceli(19441)

Question 576023: A chemist is mixing a solution containing 15% bromine with a second solution containing 28% bromine. She wishes to prepare 60 oz. of a solution containing 21% bromine. How much of each of the solutions should she use? [Round to the nearest tenth of an ounce.]
Click here to see answer by stanbon(75887)

Question 576166: How many liters of a mixture containing 80% alcohol should be added to 5 liters of 20% alcohol to yeild a 30% alcohol solution?
Click here to see answer by lwsshak3(11628)

Question 576224: A chemist has 10 quarts of 10% of acid. She wishes to add enough water to reduce it to a 4% solution. How many quarts of water must she add?
Click here to see answer by chana(69)

Question 576674: Plese help me solve this problem: erika wants to dilute a 12% salt solution with water to make 36 ounces of 8% salt solution. How much water and how much 12% salt solution should she mix together?
Click here to see answer by ankor@dixie-net.com(22740)

Question 576724: Two sisters shared a $36 5000 inheritance. Teri invested her share at 9%, while Tammy obtained 8.5% interest. After on year, their combined interest was 3200. How much did each sister invest?
Click here to see answer by mananth(16946)

Question 576781: The bookstore sold 348 notebooks the first day of classes, some at $2.85 each and the rest at $3.95 each. The total amount taken in was $1154.60. How many of each kind of notebook were sold?
Click here to see answer by chana(69)

Question 576777: How many gallons of hydrochloric acid must be added to 12 gallons of a 30% solution to obtain a 40% solution?
Click here to see answer by chana(69)

Question 577139: how many grams of pure gold must be added to one hundred grams of a twenty percent gold alloy to make an alloy that is thirty six percent gold?
Click here to see answer by solver91311(24713)

Question 577461: how much is 3/4 if a container is 6 quarters
Click here to see answer by JBarnum(2146)

Question 577665: How much of an alloy that is 40% copper should be mixed with 300 ounces of an alloy that is 60% copper in order to get an alloy that is 50% copper?
Click here to see answer by Alan3354(69443)

Question 577678: how many liters of a 50% acid solution must be mixed with a 30% acid solution to get 200 L of a 40% acid solution?
Click here to see answer by mananth(16946)

Question 577881: one litre of water was mixed to 6 lt of sugar sol containing 4 % of sugar. what is % of sugar in the sol
Click here to see answer by scott8148(6628)

Question 577965: how do you write 95 remainder 3 lbs.
Click here to see answer by Alan3354(69443)

Question 578063: how many ounces of a 15% alcohol solution must be mixed with 4 ounces of a 20% alcohol solution to make a 17% alcohol solution
Click here to see answer by josmiceli(19441)

Question 578067: How much water should be added to 1 gallon of pure antifreese to obtain a solution that is 45% antifreeze?
Click here to see answer by josmiceli(19441)

Question 578159: PEANUTS COST $3 PER POUND AND ALMONDS COST $4 PER POUND. CREATE A MIXTURE THAT IS 53 POUNDS OF NUTS AT A COST OF $155.
Click here to see answer by dfrazzetto(283)

Question 578159: PEANUTS COST $3 PER POUND AND ALMONDS COST $4 PER POUND. CREATE A MIXTURE THAT IS 53 POUNDS OF NUTS AT A COST OF $155.
Click here to see answer by Alan3354(69443)

Question 578183: How do I figure out how much a 40oz bag of beans will cost me at 5.50 per pound
Click here to see answer by ad_alta(240)

Question 578160: A CHEMIST WANTS TO CREATE A 4700 LITER MIXTURE CONTAING 10% ACID. ONE SOLUTION HAS 20% ACID AND THE OTHER HAS 15%. HOW MANY LITERS OF EACH SOLUTION SHOULD BE USED?
Click here to see answer by ad_alta(240)

Question 577970: A pound of tin is worth $2 more than a pound of copper. Eight pounds of tin are mixed with 2 pounds of copper to make bronze that sells for $4.50 per pound. How much is a pound of tin worth?
Click here to see answer by ankor@dixie-net.com(22740)

Question 578228: how much of a 4% solution is needed for a 100 mg dose ?
Click here to see answer by richwmiller(17219)

Question 578227: "Peanut Plus" containing 50% peanuts and "Deluxe Nuts" containing 25% peanuts are to be combined to form 100 lbs. of mixed nuts that will contain 35% peanuts. How many pounds of each should be used? Write a system of equations for the problem and then solve to answer please. Thank you so much!
Click here to see answer by richwmiller(17219)

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