# Questions on Word Problems: Mixtures answered by real tutors!

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 Word Problems: Mixtures Solvers Lessons Answers archive Quiz In Depth

 Question 454160: Can someone assist mew in asnwering this worpd problem? Click here to see answer by richwmiller(9143)

 Question 454937: Six hundred liters of 50% alcohol solution was diluted to make a 40% alcohol solution. How many liters of the 50% solution needed to be replaced by pure water in order to bring the alcohol concentration down to 40%? Click here to see answer by ankor@dixie-net.com(15663)

 Question 455093: I need help again, Thanks The formula r= 2sqrt 5L can be used to approximate the speed r in miles per hr of a car that has left skid marks of length L in feet. How far will a car skid at 60 mph? Click here to see answer by amoresroy(333)

 Question 455082: How many gallons of a 60% salt solution must be mixed with 30 gallons of a 13% solution to obtain a solution that is 50% salt? Click here to see answer by amoresroy(333)
 Question 455082: How many gallons of a 60% salt solution must be mixed with 30 gallons of a 13% solution to obtain a solution that is 50% salt? Click here to see answer by josmiceli(9697)

 Question 440187: A rock is propelled upward from the top of a building 80 feet tall at an initial velocity of 136 feet per second. The function that describes the height of the rock in terms of time t is f(t) = - 16t2 + 136t + 80. Determine the time at which the rock reaches its maximum height. A. 8.5 sec B. 4.25 sec C. 3.4 sec D. 6.8 sec Click here to see answer by jorel1380(2518)

 Question 454643: Six hundred liters of 50% alcohol solution was diluted to make a 40% alcohol solution. How many liters of the 50% solution needed to be replaced by pure water in order to bring the alcohol concentration down to 40%? Click here to see answer by jorel1380(2518)

 Question 453872: How much decaffeinated coffee and 50% caffeine coffee should be mixed to produce 25 cups of 40%caffeine coffee? Click here to see answer by jorel1380(2518)

 Question 453856: A dehydrated patient needs a 7.9% saline IV. Unfortunately, the hospital only has bags of 3% and 10% saline solutions. How many liters of each of these solutions should be mixed together to yield 3 liters of the desired concentration? Click here to see answer by jorel1380(2518)

 Question 453639: John wants to make a 100ml of 5% alchohal solution mixing a quantity of 2% alchohal solution with a 7% solution. What is the quantity of 2% and 7%? Click here to see answer by jorel1380(2518)

 Question 453472: 20 ml that is 10 percent acid, how much pure water must be added to get a solution that is 3 percent acid? Click here to see answer by jorel1380(2518)

 Question 453183: How many milliliters of a 32% alcohol solution must be added to 6 milliliters of a 12% alcholol solution to produce a 22% alcohol solution? Click here to see answer by jorel1380(2518)

 Question 452641: the greater of two numbers is one more than twice the smaller. three times the greater exceeds five times the smaller by ten. find the two numbers. Click here to see answer by jorel1380(2518)

 Question 452070: a pastry chef created a 50-ounce sugar solution that was 34% sugar from a 20% sugar solution and from a 40% sugar solution. how much of the 20% sugar solution and how much of the 40% sugar solution were used? Click here to see answer by jorel1380(2518)

 Question 451971: A chemist has one solution that is 80% acid and a second solution that is 30% acid. The chemist needs to mix some of both solutions to make 50 liters of a solution that is 62% acid. How much of each solution must he use? Click here to see answer by jorel1380(2518)

 Question 451678: If A baker is making fudge and his recipe calls for thirty 75% cocoa chocolate squares. He looks in the cupboard and discovers he only has 60% cocoa and 85% cocoa. How many of each should he use to make his fudge? Click here to see answer by jorel1380(2518)

 Question 455272: how much pure acid should be mixed with 6 gallons of a 50% acid solution to get a 70% acid solution? Click here to see answer by stanbon(57412)

 Question 455305: the mass m of liquid varies directly as its volume V. If the mass of liquid in a cubical container 5 cm on a side is 375 g, find the mass of the liquid in a cubical container 3 cm on a side? Click here to see answer by stanbon(57412)

 Question 455333: Find an equation of variation in which y varies directly as x and the following is true. y=3/5 when x=2/5 a. y= 1/10x b. y= 6/25x c. y= 3x/2 d. y= 3/2x Click here to see answer by stanbon(57412)

 Question 455326: Solve the system using the substitution method. If the system has no solution or an infinite number of solutions, state this. -0.7x -0.1y= -15 0.4x +0.1y= 0.6 Click here to see answer by Alan3354(30993)

 Question 455330: Find an equation of variation in which y varies directly as x and the following is true. y=400 when x=60 a. x= 20/17y b. y= 3/20x c. y= 20/3x d. x= 340y Click here to see answer by rfer(12677)

 Question 455325: Solve the system using the substitution method. If the system has no solution or an infinite number of solutions, state this. 5x+y=13 2x=-3y Click here to see answer by ilana(307)

 Question 455348: Two angles are supplementary. One angle is 240 less than three times the other. Find the measures of each angle. Click here to see answer by algebrahouse.com(1079)

 Question 455345: Given A = {1,2,3,4,5,6}, B = {1,2}, and C = {6,7}. Evaluate each set. Click here to see answer by richard1234(5390)

 Question 455556: Please help me solve the problem; Emily mixed together 9 gallons of Brand A fruit drink and 8 gallons of Brand B fruit drink which contains 48% fruit juice. Find the percent of fruit juice in Brand A if the mixture contained 30% fruit juice. Click here to see answer by richwmiller(9143)

 Question 455819: Jerry is experimenting with chemicals in the laboratory. He mixes a solution that is 10% acid with a solution that is 30% acid. How much of the 30% acid solution will be needed to make 40 liters of solution that is 25% acid? Click here to see answer by stanbon(57412)

 Question 455868: How many quarts of a 20% alcohol solution and how many quarts of pure alcohol should be mixed together to obtain 100 quarts that contain 30% alcohol? Can you please help me! I am completely lost. Click here to see answer by Alan3354(30993)
 Question 455868: How many quarts of a 20% alcohol solution and how many quarts of pure alcohol should be mixed together to obtain 100 quarts that contain 30% alcohol? Can you please help me! I am completely lost. Click here to see answer by stanbon(57412)

 Question 455922: Two types of candy sell for \$2.50 per pound and \$4.00 per pound. How much of each type of candy should be included in order to make a 5 pounds mixture of worth \$17.60. Click here to see answer by richwmiller(9143)

 Question 456088: Bill makes a mixed of dried fruits by mixing dried apples costing \$6/kg with dried apricots costing \$8/kg. How many kg of each are needed to make a 20 kg mixture worth \$7.20/kg? Click here to see answer by richwmiller(9143)

 Question 456091: It takes Maria 1 & 1/2 hours to deliver newspapers every morning. Hal can deliver the papers alone in one hour. How fast can they deliver the newspapers if they work together? Click here to see answer by stanbon(57412)

 Question 456086: How many liters of water must be evaporated from 20L of a 30% salt solution to produce a 50% salt solution? Click here to see answer by Alan3354(30993)

 Question 456728: A dealer wishes to produce 300 gallons of oil worth 40 a quart. He has oil worth 36 a quart and oil worth 52 a quart. How many quarts of each should he mix? Click here to see answer by richwmiller(9143)

 Question 456792: how many liters of a 40% solution of acid must be combined with 15% solution to obtain 30 liters of a 20 solution? i want to see how to form the eqations Click here to see answer by stanbon(57412)

 Question 456877: How many milliliters of water would you add to 75 milliliters of a 15% acid solution to make a 10% solution? (This is supposed to be solved using a system of linear equations. Click here to see answer by mananth(12270)

 Question 456997: Rajat gave a quarter of his chocolates to Harsh and then gives 5 of his chocolates to Tushar.He has7 left.How many did he have to start with? Click here to see answer by mananth(12270)

 Question 457199: Another problem I need help with Suppose for a certain company C(x)= 35x + 300,000 represents the total function, and R(x)=55x represents the total revenue function. Find the total function and break even point. Click here to see answer by stanbon(57412)

 Question 457277: How much of an 8% saline solution should be added to 600ml of a 3% solution to produce a 5% solution? Click here to see answer by stanbon(57412)

 Question 457619: When three pumps A,B, and C are running together, they can pump 3200 gal an hour. When only A and B are running, 1900 gal per hour can be pumped. When only A and C are running, 1900 gal per hour can be pumped. What is the pumping capaciity of each pump? I set it up like this. x+y+z=3200 x+y=1900 x+z=1900 not sure where to continue im stuck Click here to see answer by oberobic(2304)

 Question 457928: Walt has a piece of rope 10 1/3 feet long. He has to cut it into 4 equal pieces. How long will each piece be? I tried to make this an improper fraction then divide by 4 but it didn't seem right. I need to know how to solve these types of problems Click here to see answer by richwmiller(9143)

 Question 457903: You add 1 quart of orange juice concentrate to 4 quarts of a solution that is 20% concentrate in water. What is the percent of concentrate in your new solution? Click here to see answer by richwmiller(9143)

 Question 458174: the nut shopped has 10 kg of mixed cashews and pecans,which sell for \$8.40 per kilogram.Cashews alone sell for \$8 per kilogram,and pecans sell for \$9 per kilogram. how many kilograms of each are in the mix? Click here to see answer by richwmiller(9143)

 Question 458270: How many quarts of a 10% antifreeze solution must be mixed with 16 quarts of a 40% antifreeze solution to make a 30% solution. Click here to see answer by mananth(12270)

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