Tutors Answer Your Questions about Mixture Word Problems (FREE)
Question 504567: Please help me with this equation: You have a total of $5000 invested in two simple interest accounts. On one account, the annual simple interest rate is 6%. On the second account, the annual simple interest rate is 8%. The total annual interest earned in one yar is $370. How much is invested in each account?
Click here to see answer by Theo(13342)  |
Question 505087: an auto mechanic needs 24 gallons of ani-freeze with a 30 percent glycol concentration. he has on hand only anit-freeze with a 40 percent glycol concentration and one with a 10 percent glycol concentration. How much of the 40 percent should he mix with the 10 percent to get the 24 gallons of 30 percent solution he needs?
Click here to see answer by Earlsdon(6294) |
Question 505166: How much acid at 70% concentration must be added to 12 ounces at 40% concentration in order to obtain a mixture that is 50% acid?
-I know the answer will be closer to 40 than 70, but I'm just not sure how to work the problem out.
Click here to see answer by ptaylor(2198)  |
Question 505302: Suppose that X liters of 38% acid solution are mixed with y liters of a 42% solution to obtain 100L of a 39% solution. One equation in a system for solving this problem is x+y=100. Which one of the following is the other equation? A. 42x+38y=0.39*100 B 0.38x+0.42y=0.39*100 C. 0.42x+0.38y=0.39*100 D. 38x+42y=39
Click here to see answer by stanbon(75887) |
Question 505697: My algebra 2 question on my homework worksheet is this:
"A health clinic uses a solution of bleach to sterilize Petri dishes in which cultures are grown. The sterilization tank contains 100 gal of a solution of 2% ordinary household bleach mixed with pure distilled water. New research indicates that the concentration of bleach should be 5% for complete sterilization. How much of the solution should be drained and replaced with bleach to increase the bleach content to the recommended level?"
How would you solve that?
Click here to see answer by ankor@dixie-net.com(22740)  |
Question 505697: My algebra 2 question on my homework worksheet is this:
"A health clinic uses a solution of bleach to sterilize Petri dishes in which cultures are grown. The sterilization tank contains 100 gal of a solution of 2% ordinary household bleach mixed with pure distilled water. New research indicates that the concentration of bleach should be 5% for complete sterilization. How much of the solution should be drained and replaced with bleach to increase the bleach content to the recommended level?"
How would you solve that?
Click here to see answer by oberobic(2304) |
Question 505846: A bag of peanuts is worth $. 42 less than the same size of cashews. Equal amounts of peanuts and cashews are used to make 40 bags of a mixture that sells for $1.10 per bag. How much is a bag of cashews worth?
Click here to see answer by ptaylor(2198)  |
Question 506363: An automobile radiator holds 24 liters of fluid. There is currently a mixture in the radiator that is 70% antifreeze and 30% water. How much of this mixture should be drained and replaced by pure antifreeze so that the resulting mixture is 80% antifreeze?
Click here to see answer by scott8148(6628)  |
Question 507356: A large solar heating panel requires 120 gallons of a fluid that is 30% antifreeze. The fluid comes in either a 50% solution or a 20% solution. How many gallons of each should be used to prepare the 120 gallon solution.
My professor only wants us to set up the equation to solve, but not to actually solve. Thanks.
Click here to see answer by lwsshak3(11628) |
Question 508314: The dosage of a medicine ordered by a doctor is 40 mL of a 16% solution. A nurse has available both a 20% solution and a 4% solution of this medicine. How many milliliters of each could be mixed to prepare this 40-mL dosage?
Click here to see answer by Maths68(1474)  |
Question 508018: A chemistry student has a 15% hydrochloric acid solution and a 40% hydrochloric acid solution. How many liters of each should she mix to get 10 liters of a hydrochloric acid solution with a 30% acid concentration?
Click here to see answer by Maths68(1474)  |
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