Tutors Answer Your Questions about Mixture Word Problems (FREE)
Question 48222: A biologist has two brine solutions, one containing 5% salt and another containing 20% salt. How many milliliters of each solution should he mix to obtain 1 L of a solution that contains 14% salt?
Thank you so much for all your help!!
Click here to see answer by stanbon(75887)  |
Question 48237: A customer in a coffee shop purchases a blend of two coffees: Kenyan, costing $3.50 a pound, and Sri Lankan, costing $5.60 a pound. he buys 3 lb of the blend, which costs him $11.55. How many pounds of each kind went into the mixture?
Thank you for helping me!
Click here to see answer by tutorcecilia(2152)  |
Question 48573: Solution x is 2% alcohol and solution y is 6% alcohol. A drugstore owner wants to mix them in order to get a 60 liter of solution that is 3.2% alcohol. How many liters of each should the owner use?
My dear tutor i would be very glad if you can help me solved this problem. I had been trying my very best but really iam poor in math. THANKS so much and more power........
Click here to see answer by longjonsilver(2297)  |
Question 48608: An investor with $10,000 wishes to invest part of it at 11% simple interest and the rest at 12% simple interest. How much should she invest at 11% if she is to receive a total of $1115 in interest from boht investments that year?
Thanks!
Click here to see answer by checkley71(8403) |
Question 48662: ben is developing film in his darkroom when he realized he does not have the proper developer. he needs a mixture that is 20% developer, but he only has a mixture that is 80% developer. how much pure water must be mixed with 9 pints of 80% developer to produce the mixture he needs. the answer is 27 but how do i write the equation.
Click here to see answer by stanbon(75887) |
Question 48663: nat wants to combine two types of nuts to make a mixture that costs $1.64 per pound. how many pounds of nuts that cost $1.40 per pound should be mixed with 3 pounds of nuts that cost $2.20 per pound to obtain the desired mixture.
i tried 1.40x + 3(2.20) = $1.64 but this doesn't work. the answer is 7 pounds but i don't understand how to get the formula.
Click here to see answer by checkley71(8403) |
Question 48645: regular yogurt that is 3% is blended with nonfat yogurt to obtain low fat yogurt that is 1% fat. How many pounds of non-fat and how many pounds of regular yougurt is mixed to obtain 60 pounds of low fat yogurt?
Click here to see answer by stanbon(75887) |
Question 49548: Dearest tutors, can you help me regarding my problem? thank you for that..
4. A 30-kilogram bag of cement mix contains 25% and 75% sand. How much pure cement must be added to produce a cement mix that is 40% cement?
Click here to see answer by stanbon(75887) |
Question 49662: please help me with this problem: One on one: Find two positive real numbers that differ by 1 and have a product of 1. and the next one is Swimming pool design: an architect has designed a motel pool within a rectangular area that is fenced on three sides. If she uses 60 yards of fencing to enclose an area of 352 square yards, then what are the dimensions marked L and W. Assume that L is greater than W.
Click here to see answer by venugopalramana(3286) |
Question 49816: francisco was rasing afican spotted mice. they were unusual in that every two months the female had exactly two babies ---a male and female. when these babies were two monthes old, they had their first babies and continued to have them every two months after that.
Francisco began with one pair of spotted mice on jan. 1 1998 and his parents made him sell all that he had on jan.1 2000, just after more babies were born since none of the mice had died, he had quite a few How many?
Click here to see answer by venugopalramana(3286) |
Question 50474: My son is in 8th grade and I am trying to help him with
math. Please explain a formula to figure these types
of problems. Thanks
A bike costs $100 more than a scooter. A scooter costs $60
more than a skateboard. the total cost of the 3 items is
$310. How much is skateboard? Scooter? Bike?
Click here to see answer by tutorcecilia(2152) |
Question 50474: My son is in 8th grade and I am trying to help him with
math. Please explain a formula to figure these types
of problems. Thanks
A bike costs $100 more than a scooter. A scooter costs $60
more than a skateboard. the total cost of the 3 items is
$310. How much is skateboard? Scooter? Bike?
Click here to see answer by AnlytcPhil(1806)  |
Question 51687: im having a hard time trying to figure out the formula. boxes of candy containing creams and caramels sells for $8 per box and hold 50 pieces. caramels cost $0.10 to produce and creams cost 0.20. how many creams and caramels should be in each box for no profit or loss. i have come up with a formula but it is not working, please help. .10x+.20y=8(50). ive tried different but this seems to be the way other formulas are in but wont work for me.
Click here to see answer by tutorcecilia(2152) |
Question 52969: The electricity costs of a business decreased from $12,000 one year to $10,920 the next. What is the rate of decrease? McGraw Hill, Chapter 2, Exercise 6, Problem 52. No ISBN so sorry! Thankyou for your time!!!!
Click here to see answer by funmath(2933) |
Question 52972: Sam must have an average of 70 or more in his course to obtain a grade of C. His first three test grades were 75,63,68.Write an equality representing the score Sam must get on the last test to get a grade of C. McGraw Hill, Chapter 2.Exercise 7. Problem number 92. Sorry no isbn. Thanks so much!!!!
Click here to see answer by checkley71(8403) |
Question 52973: The cost of a long distance phone call is $0.36 for the first min. and $0.21 for each additional min. or portion thereof. Write an inequality representing the number of min. a person could talk without going over $3.00 McGraw Hill, CH. 2. Ex. 7, Problem number 94. Thanks for your help!!!!!!!
Click here to see answer by checkley71(8403) |
Question 53063: I have been working on this for two days and I just can't get it.
jA coffee merchant combines coffee costing $5.50 per pound with coffee costing $3.00 per pound. How many pounds of each should be used to make 40 lb. if a blend costing $4.00 per pound.
5.50+ 3.00(40)=4.00(xy+40)
5.50+120=4.00xy+160
I just am not seeing it. help please. and thanks
Click here to see answer by Earlsdon(6294) |
Question 53099: A consultant traveled 10 hours to attend a meeting. The return trip took only 9 hours because the speed was 8 miles per hour faster. What was the consultants speed each way? No book. Thanks so much for your time!
Click here to see answer by AnlytcPhil(1806) |
Question 53099: A consultant traveled 10 hours to attend a meeting. The return trip took only 9 hours because the speed was 8 miles per hour faster. What was the consultants speed each way? No book. Thanks so much for your time!
Click here to see answer by funmath(2933) |
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