Tutors Answer Your Questions about Mixture Word Problems (FREE)
Question 215616: Lauren is shooting at a target in a fair. If she hits the target she receives 50p, if she misses she loses 20p. After 15 shots, Lauren she has made a profit of £1.20. How many hits has she had?
I know the answer is 6 (using trial and error) but I need the proper algebraic method for it please.
Thank you
Ronit
Click here to see answer by ankor@dixie-net.com(22740)   |
Question 215746: to create a breakfast beverage, cherry juice in two concentrations, 19% and 60%, must be combined into a solution that will be mixed with another type of juice to produce the beverage. if 70 gallons of 19% juice is used, how many gallons of the 60% juice must be used to obtain a 50% cherry juice solution?
Click here to see answer by checkley77(12844) |
Question 215746: to create a breakfast beverage, cherry juice in two concentrations, 19% and 60%, must be combined into a solution that will be mixed with another type of juice to produce the beverage. if 70 gallons of 19% juice is used, how many gallons of the 60% juice must be used to obtain a 50% cherry juice solution?
Click here to see answer by ankor@dixie-net.com(22740) |
Question 215928: a tank contains 20 gallons of a mixture of alcohol and water that is 40% alcohol by volume. how much of the mixture should be removed and replaced by an equal volume of water so that the resulting solution will be 25% alcohol by volume?
can you make a representation and solution to this?
i tried making this equation: .40(20)-.40(x)+.1(20)=.25(20-x=20) but this doesn't work out when i check it...
Click here to see answer by ankor@dixie-net.com(22740) |
Question 216288: A chemist wants to mix 9 liters of 25% acid solution. Because of limited amounts on hand, the mixture is to come from three different solutions, one with 10% acid, another with 30% acid, and a third with 40% acid. The amount of the 10% solution must be twice the amount of the 40% solution, and the amount of the 30% must equal the total amount of the other two solutions. how much of each solution must be used?
Click here to see answer by ankor@dixie-net.com(22740) |
Question 217284: a pharmacist wishes to mix a solution that is 3% minoxidil. She has on hand 100 ml of a 2% solution and wishes to add some 5% solution to obtain the desired 3% solution. How much 5% solution should she add?
Click here to see answer by rfer(16322) |
Question 217290: Navigate questions by number
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Question #27 / 30
Suppose that the monthly cost of a long-distance phone plan (in dollars) is a linear function of the total calling time (in minutes). When graphed, the function gives a line with a slope of 0.12 See the figure below.
The monthly cost for 51 minutes of calls is $18.51 What is the monthly cost for 43 minutes of calls?
Click here to see answer by rfer(16322) |
Question 217474: The cooling system of a cerain fereign-made car has a capacity of 15 liters. if the system is filled with a mixture that is 40% anifreeze, how muxh of this mixture should be drained and replaced by pure antifreeze so that the systm is filled with a solution that is 60% antifreeze?
Click here to see answer by rfer(16322) |
Question 217750: an apartment building has 7 stories. The top floor is one large apartment. Each floor has twice as many apartments as the floor above it. How many apartments are in the building? Find the generalized formula that would determine the number of apartments in the building if it had "x" stories (floors). I think that x equals the number of floors and y should be the number of apartments. I am stumped there. Can you help me?
Click here to see answer by rfer(16322) |
Question 217947: what is the equation and the solution this word problem?
An advertisement for grape juice claims their juice contains 10% grape juice. How much pure grape juice would have to be added to 5 quarts of the drink to obtain a mixture of 40% grape juice.
Click here to see answer by RAY100(1637) |
Question 218140: A student needs to put a 60% antifreeze solution in his car. If his car holds 10 quarts of antifreeze and he only has jugs of a 30% and 80% solution, how much of each solution should be used to fill his car?
Click here to see answer by RAY100(1637) |
Question 218487: I really don't understand how to even begin this problem and I am not sure if this is even the correct category but my teacher fails to understand the meaning of please explain this problem and not just hand out the answers. the problem is "A grocer mixed nuts worth 80 cents per pound with nuts worth 50 cents per pound. How many pounds of each did he use to make a mixture of 30 pounds to sell at 75 cents per pound?"
Click here to see answer by stanbon(75887) |
Question 218487: I really don't understand how to even begin this problem and I am not sure if this is even the correct category but my teacher fails to understand the meaning of please explain this problem and not just hand out the answers. the problem is "A grocer mixed nuts worth 80 cents per pound with nuts worth 50 cents per pound. How many pounds of each did he use to make a mixture of 30 pounds to sell at 75 cents per pound?"
Click here to see answer by checkley77(12844) |
Question 218487: I really don't understand how to even begin this problem and I am not sure if this is even the correct category but my teacher fails to understand the meaning of please explain this problem and not just hand out the answers. the problem is "A grocer mixed nuts worth 80 cents per pound with nuts worth 50 cents per pound. How many pounds of each did he use to make a mixture of 30 pounds to sell at 75 cents per pound?"
Click here to see answer by Earlsdon(6294) |
Question 218869: A bakery wants to make a dessert out of chocolate and almonds. If the cost of chocolate is $.75 a pound, and almonds is $.50 a pound, then how many pounds of chocolate should be used to make 30 pounds of the dessert that costs the bakery $.65 a pound?
Click here to see answer by RAY100(1637) |
Question 219257: Rob and his brother mixed together two types of soil to make 15 m3 of soil with a 26% silt content. They used 8 m3 of a soil with 12% silt content and 7m3 of another type of soil. What was the silt content of the second type of soil?
Click here to see answer by checkley77(12844) |
Question 219575: Hi, I have a solution/miture question. I can solve the problem just fine once I get it in the right order... but this one I'm having a hard time putting all the info where it belongs.
Q) A pharmacist has 20L of a 10% drug solution. How many liters of 5% solution must be added to get a mixture that is 8%?
If you could just help me get this in the right format I would would be so thankful!! Thanks!!!
Casie R
Click here to see answer by RAY100(1637) |
Question 219575: Hi, I have a solution/miture question. I can solve the problem just fine once I get it in the right order... but this one I'm having a hard time putting all the info where it belongs.
Q) A pharmacist has 20L of a 10% drug solution. How many liters of 5% solution must be added to get a mixture that is 8%?
If you could just help me get this in the right format I would would be so thankful!! Thanks!!!
Casie R
Click here to see answer by josmiceli(19441)  |
Question 219776: A radiator contains 15 gal of a 20% antifreeze solution. How many gallons must be drained from the radiator and replaced by pure antifreeze so that the radiator will contain 15 gal of a 40% antifreeze solution?
Click here to see answer by ptaylor(2198)  |
Question 219871: Please help me with this problem:
a pharmacist wishes to mix a solution that is 6% minoxidil. She has on hand 100ml of a 1% solution and wishes to add some 8% solution to obtain the desired 6% solution. How much 8% solution should she add?
Click here to see answer by stanbon(75887) |
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