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Question 470516: To build the garden of your dreams you 10 ft3 of soil containing 17% clay. you have two types of soil you can combine to achieve this: soil with 35% clay and soil with 10% clay. how much of each soil should you use?
Click here to see answer by stanbon(75887)

Question 470544: uppose that you have a supply of a 20% solution of alcohol and a 80% solution of alcohol. How many quarts of each should be mixed to produce 80 quarts that is 35% alcohol?

Click here to see answer by mananth(16946)

Question 470909: How many liters of 50% acid must be mixed with 20% acid to get 10 liters of a 30% mixture?
Click here to see answer by ewatrrr(24785)

Question 470954: In a mixture of concrete, there are 3 lb of cement mix for each pound of gravel. If the mixture contains a total of 44 lbs of these two ingredients, how many pounds of gravel are
Click here to see answer by jorel1380(3719)

Question 470881: At a bridal reception, there are tables that seat 8 people and tables that seat 10 people. If the bride uses the tables that seat 8 people she will have exactly 2 people left over. If she uses the tables that seat 10 people she will have exactly 4 people left over. She has between 200 and 250 guests. How many guests does the bride have.
Can you show me how to solve this and what formula to use.
Thx much
karen
Click here to see answer by ankor@dixie-net.com(22740)

Question 471083: how much water must be evaporated from 5 liters of 25% salt solution if the remaining solution must be 50%?

Click here to see answer by Tatiana_Stebko(1539)

Question 471083: how much water must be evaporated from 5 liters of 25% salt solution if the remaining solution must be 50%?

Click here to see answer by Alan3354(69443)

Question 468839: 16 ounces of fresh juice contains 216 calories and 16 ounces of grapefruit contains 174 calories. If an 8 ounce mixture of these 2 juices contains 94 calories then what fraction of the mixture is orange juice?
(A) 1/3 (B) 407/108 (C) 1/2 (D) 2/3
Sir please answer this question step by step
Click here to see answer by ahmadbsse(1)

Question 471145: 1) A box with a square base and no top is to be made from a square piece of tin by cutting out 3-inch squares from each corner and folding up the sides. If the box is to hold 48 cu. in., what size of tin should be used?
2) Orlando won $200.000 in a state lottery. He first paid an income tax of 30% of the winnings and the rest he invested at 8.5% and 7% earning $10,700 interest a year. How much did he invest at each rate?
Click here to see answer by Theo(13342)

Question 471414: Use x and y to solve the following problem. Solve with a system of two equations. A candy mix sells for $1.10 per pound. If the mix is composed of two kinds of candy, one worth $.90 per pound and the other worth $1.50 per pound, how many pounds of each would be in a 60 pound mixture?
Click here to see answer by mananth(16946)

Question 471726: How much of an alloy that is 10% copper should be mixed with an alloy that is 60% copper in order to get an alloy that is 20% copper?
Click here to see answer by stanbon(75887)

Question 471866: Sally has a glass that is 1/3 filled with syrup. Bob has a glass that is 1/4 filled with syrup but Bob's glass holds twice as much as Sally's. If they were to fill the rest of their glasses with milk, then mix them together, what part of the combine mixture would be syrup.
Please let me know the process of solving this problem.
Click here to see answer by ankor@dixie-net.com(22740)

Question 472081: How many liters of pure water must be added to 6 liters of a 30% solution to get a 10% solution
Click here to see answer by stanbon(75887)

Question 472164: One Solution is 30% alcohol and another is 70% alcohol. Some of each solution is mixed to produce 8 liters of 40% solution. How many liters of the 70% solution should be used?
Click here to see answer by mananth(16946)

Question 472230: how many ounces of a 5% alcohol solution must be mixed with 14 ounces of a 10% alcohol solution to make a 6% alcohol solution?
Click here to see answer by mananth(16946)

Question 472421: a man is 1.75 m high and the height of the tree is 8.75 m
express the height of the man as a percentage of the height of the tree
both the tree and the man stand on hoeizontal ground . at a certain time of the day the tree cast a shadow of length 6m. what is the length of the shadow cast by the man at the time
Click here to see answer by jorel1380(3719)

Question 472424: the model of the air craft is in the scale 1:80
if the wing span of the model is 25cm what is the wing span of the actual air craft in meters
id the real aircraft is 40 m long what is the length of the model in centimeter
Click here to see answer by jorel1380(3719)

Question 472425: an architect 's model of a block of flats is in the scale 1:50
if the model is 0.8 m wide how wide is the actual block of flats
if the block of flats is 30 m high how tall is the model
Click here to see answer by jorel1380(3719)

Question 472377: How many litres of a 30% acid solution should be added to 20 litres of 60% acid solution in order to obtain a 50% acid solution?

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

Question 472514: To find the height of a bridge above a river, a man drops a rock into the water. It takes the rock 5 seconds to hit the water. How high is the bridge
the formula given is t=square root of d over 16
Click here to see answer by Alan3354(69443)

Question 472734: How many liters of 20% alcohol solution should be added to 40 liters of a 50% alcohol solution to make a 30% solution?
Click here to see answer by monika_p(71)

Question 472735: sally is 12 years older than her brother matt. four years from now, matt will be two-thirds as old as sally will be four years from now. how old are they now?
Click here to see answer by stanbon(75887)

Question 472759: A radiator contains 8 liters of mixture of water and antifreeze. If 40% of the mixture is antifreeze, how much of the mixture shall 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 472969: A chemist has a 30% acid solution and a 60% solution already prepared. How
much of each of the two solutions should be mixed to form 300 mL of a 50%
solution?
Thank you in advance!
Click here to see answer by stanbon(75887)

Question 473018: A doctor prescribes an ointment that is 4% hydrocortisone. A pharmacist has 1% and 5% concentrations in stock. How many ounces of each should the pharmacist use to make a 1 ounce tube?
Click here to see answer by mananth(16946)

Question 473258: a 70% acid solution is to be mixed with a 40% solution to get 90 gallons of a 50% solution
how much gallons of solution is needed
Click here to see answer by stanbon(75887)

Question 473294: Lauren and david, two cyclists leaev from philadelphia traveling in opposite directions. David travels 5mph faster than lauren, after 3 hours, they are 25miles apart, what are the rates of each?
Click here to see answer by stanbon(75887)

Question 473272: a 10% acid solution is to be mixed with a 50% solution to get 200 litres of a 20% solution. how many litres of each solution should be used?
Click here to see answer by NancyLam(35)

Question 473346: ferdie's car uses 15 liters of gasoline to travel 200 km.at that rate,how much gasoline will his car use to travel 300 km ?
Click here to see answer by Alan3354(69443)

Question 473556: how many gallons of pure alcohol must be mixed with 5 gallons of a solution that is 20% alcohol solution that is 50% alcohol?
Click here to see answer by stanbon(75887)

Question 473567: how many liters of pure alcohol must be mixed with 20 liters of 25% alcohol solution to get 85% mixture?
Click here to see answer by stanbon(75887)

Question 473567: how many liters of pure alcohol must be mixed with 20 liters of 25% alcohol solution to get 85% mixture?
Click here to see answer by oberobic(2304)

Question 473852: a merchant has coffee worth $50 a pound that she wants to mix with 90 pounds of coffee worth $80 a pound to get a mixture that can be sold for $70 a pound. How many pounds of the $50 coffee should be used?
Click here to see answer by stanbon(75887)

Question 473860: How much water should be added to 22mL of 17% alcohol solution to reduce the concentration to 11%
Click here to see answer by Alan3354(69443)

Question 474192: A lab assistant is asked to mix a 30% alcohol solution with 21 liters of an 80% alcohol solution to make a 60% alcohol solution. How many liters of the 30% alcohol solution should be used?
Click here to see answer by ewatrrr(24785)

Question 474161: kerri said that they needed about 1 3/4 cups of sugar for each cake and they had to make 15 cakes. how much sugar did they need for all 15 cakes. my answer were 26 3/4 is that correct
Click here to see answer by MathLover1(20850)

Question 474312: pharmacy tech student need a answer to a dilution problem. A 20% solution has been diluted to 400 ml and is now a 5% solution.What was the beginning volume of the 20% solution.
Click here to see answer by jorel1380(3719)

Question 474334: A dehydrated patient needs 6.1% saline IV. Unfortunately the hospital only has bags of 5% and 7% saline solutions. How many liters of each of these solutions should be mixed together to yield 2 liters of the desired concentration?
Click here to see answer by stanbon(75887)

Question 474876: How much water is needed to dilute 8 grams of sugar?
Click here to see answer by Alan3354(69443)

Question 474871: You have 100 mL of 10% acid,how many mL of 100% acid do you need to add to make the solution 20%?
i don't know where to start.
Click here to see answer by lwsshak3(11628)

Question 474916: decrease 300 litres by 60%
Click here to see answer by robertb(5830)

Question 474922: a liter of chemical x is 95% pure, how many liters of water should be added to make a 50% solution?
Click here to see answer by robertb(5830)

Question 475280: How many gallons of 90% antifreeze would i add to 70 gallons of 20% antifreeze to get a 80% mixture
Click here to see answer by robertb(5830)

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