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Question 49547: Dearest tutors, can you help me regarding my problem? thank you for that..
3. How much pure alcohol must be added to 8 quarts of a 20% solution of alcohol produce a 40% solution?
Click here to see answer by AnlytcPhil(1278)

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 50632: A customer has asked a caterer for 60lbs of nuts, 60% of which are to be cashews. The caterer has available mixtures off 70% cashews and 45% cashews. How many pounds of each mixture should be used?
Click here to see answer by checkley71(8403)

Question 51084: Anne and Nancy use a metal alloy that is 21.22% copper to make jewelry. How many ounces of a 16% alloy must be mixed with a 25% alloy to form 100 ounces of the desired alloy?
Click here to see answer by venugopalramana(3286)

Question 51089: A low calorie dounut has 90% fewer caloires than a regular donut. How many low calorie would you need to eat to take in as many calories as you would get from a regular donut?
Click here to see answer by darq(90)

Question 51414: x = 7 + 9 - 6 * 5 / 2
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Question 51441: How many pounds of Raisind @ $2.20/lb must be mixed with 15 lbs of nuts @ $4.00/lb to restult in a trail mix worth $ 3.00/lb?
Click here to see answer by music974(43)

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 51653: y=10 ** 2 - 8 + 41 * 2
Click here to see answer by rchill(405)

Question 52068: The radiator in a car is filled with a solution of 60% antifreeze and 40% water. The manufacturor of the antifreeze suggests that, for summer driving, optimal cooling of the engine is obtained with only 50% antifreeze. If the capacity of the radiator is 3.6Liters how much coolant should be drained and replaced with water to reduce the antifreeze concentration to the recommended level.
Click here to see answer by josmiceli(9817)

Question 52078: How many liters of a 10% alcohol solution must be mixed with 40 L of a 50% solution to get a 40% solution?
Click here to see answer by Earlsdon(6294)

Question 52250: adult tickets for a play cost $5 and children tickets cost $2 for 1 person. 460 tickets were sold. Receipts were $1880. Find # of adult tickets sold. Please help me with this problem!
Click here to see answer by tutorcecilia(2152)

Question 52968: A chemist has 300 milliliters of a solution that is 18% acid. How many milliliters of acid are in the solution? McGraw Hill Beginning Algebra Chapter 6. Thanks so very much for your help!!!!!
Click here to see answer by funmath(2925)

Question 52967: There are 850 douglas fir trees and ponderosa pine trees in a section of forest bought by sawz logging co. The company paid an average of $300 for each douglas fir and $225 for each ponderosa pine. If the company paid $217,500 for the trees, how many of each kind did the company buy? McGraw Hill- Beginning Algebra, Chapter 2 exercise 6 and 7 for both problems. NO ISBN Sorry!
Thankyou so very much!!!!!!!
Click here to see answer by funmath(2925)

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(2925)

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 53098: Allen bought 20 stamps at the post office in 37 cent and 20 cent denominations. If the total cost of the stamps was $7.06 how many 37 cent stamps did Allen buy? No book. Thanks so much!
Click here to see answer by funmath(2925)

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(1278)

Question 53097: Find two consecutive integers such that the sum of 8 times the first integer and 6 times the second integer is 48.No book. Thanks so much!
Click here to see answer by funmath(2925)

Question 53370: Graph this equation using the intercept method. 2x+3y=6. McGraw Hill 6th edition, chapter 6, section 3,problem # 28. Thanks so much for your help!!
Click here to see answer by funmath(2925)

Question 53402: Here is the url for the web site that has a graph similar to the one in this problem. Sorry about the trouble. I could not find a graph I could copy and paste. http://www.math.com/school/subject2/lessons/S2U4L3GL.htm
(This is at webmath.com)
Here is my problem: Graph this equation by first solving y.
2x-3y=12
McGraw Hill chapter 6, sec. 3, problem # 34. Thank you for your valuable time!!!!

Click here to see answer by Earlsdon(6294)

Question 53434: The revenue of a sandwich shop is directly proportionate to its advertising.When the owner spent $2000 a month on advertising, the revenue was $120,000. If the revenue is now $180,000, how much is the owner spending on advertising?
McGraw Hill 6th edition, chapter 6, sec 4, problem # 64. Thanks for your help!!!!
Click here to see answer by Earlsdon(6294)

Question 53464: Can you help with this story problem?
Mike picked three-fourths of the pears on his father's tree. After Mike finished, Sylvia picked two-thirds of the pears that were left on the tree. After Sylvia finished, there were twenty pears left on the tree. How many pears were on the tree before Mike and Sylvia started picking?
Thank you for your time.
Click here to see answer by checkley71(8403)

Question 53493: A merchant blends tea that sells for $3.00 a pound with tea that sells for $2.75 a pound to produce 80 lb of a mixture that sells for $2.90 a pound. How many pounds of each type of tea does the merchant use in the blend?
Click here to see answer by bubblz190(11)

Question 53527: If you mix 140 mL of a 60% acid solution with 200 mL of a 30% solution you get a 350 mL of a _____% solution.
Click here to see answer by tutorcecilia(2152)

Question 54117: The owners of a candy store want to sell, for $6 per pound, a mixture of chocolate covered raisins, which usually sells for $3 per pound, and chocolate covered macadamia nuts, which usually sells for $8 per pound. They have a 60 pound barrel of the raisins. How many pounds of the nuts should they mix with the barrel of raisins so that they hit their target value of $6 per pound for the mixture?
Click here to see answer by stanbon(57967)

Question 54350: A got part a and b of this problem but seem to be having difficulty with the answer to c.
Two-cycle enginges, used in snowmobiles, chain saws, and outboard motors, require a mixture of gasoline and oil. For certain engines the amount of oil in pints that should be added to x gallons of gasoline is computed by f(x) = 0.16x
I got the answer to b as
b) Evaluate f(3)
f(3) = 0.16(3)
=.48
c. how much gasoline should be mixed with 1 quart of oil?

Click here to see answer by stanbon(57967)

Question 54690: a football player carried the ball 5 times during a game. he gained 15 yards on the first play, gained 11 yards on the third carry, lost 9 yards on the fourth and had no gain or loss on the fifth carry. what was his total amount of yardage for the game?
Click here to see answer by checkley71(8403)

Question 54735: i need to see how you work this problem with all steps shown:
How many metric tons of chromium must be added to 2.50 metric tons of stainless steel to raise the percent chromium from 11% to 18%?
Click here to see answer by psbhowmick(529)

Question 54730: i need to see how you work this problem with all steps shown:
How many metric tons of chromium must be added to 2.50 metric tons of stainless steel to raise the percent chromium from 11% to 18%?
Click here to see answer by psbhowmick(529)

Question 54769: A 25% SOLUTION OF ALCOHOL IS TO BE MIXED WITH A 40% SOLUTION TO GET 50L OF A FINAL MIXTURE THAT IS 30% alcohol. How much of each of the original solution should be used?
Click here to see answer by checkley71(8403)

Question 54768: A 25% SOLUTION OF ALCOHOL IS TO BE MIXED WITH A 40% SOLUTION TO GET 50l OF A FINAL MIXTURE THAT IS 30% alcohol. How much of each of the original solution should be used?
Click here to see answer by venugopalramana(3286)

Question 54853: Find the selling price per pound of a coffee mixture made from 8 pounds of coffee that sells for $9.20 per pound and 12 pounds of coffee that sells for $5.50 per pound.
Thank you
Click here to see answer by stanbon(57967)

Question 54857: 17. Write the equation of the line with slope 4 and y-intercept (0, –5). Then graph the line.
Thanks so much!!! no book
Click here to see answer by rapaljer(4667)

Question 54931: Find the selling price per pound of a coffee mixture made from 8
pounds of coffee that sells for $9.20 per pound and 12 pounds of coffee
that sells for $5.50 per pound.
Click here to see answer by Cintchr(481)

Question 55259: What quantity of 60% acid solution must be mixed with 30% solution to produce 300mL of a 50% solution?

Click here to see answer by venugopalramana(3286)

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