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Question 584037: Write an expression in x for the area of a parallelogram whose base is x+2 and whose hight is x+2
Click here to see answer by solver91311(24713)

Question 584092: five less than three times a number is the same as twice the sum of a number and two. Find the number.
Click here to see answer by rfer(16322)

Question 584123: How much 8% saline solution should Mary mix with 80cc of an 18% saline solution to produce a 12% saline solution?
Click here to see answer by richwmiller(17219)

Question 584607: A merchant mixed 8 lb of a cinnamon tea with 4 lb of spice tea. The 12-pound mixture cost $38. A second mixture included 10 lb of the cinnamon tea and 12 lb of the spice tea. The 22-pound mixture cost $72. Find the cost per pound of the cinnamon tea and of the spice tea.
Click here to see answer by josmiceli(19441)

Question 584698: I have 80% solution (vinegar) and need 7% solution (Vinegar).
How much water do I have to add to get the result?
Click here to see answer by richwmiller(17219)

Question 584714: the sum of 2 number is 100. The larger number is 10 more than twice the smaller
Click here to see answer by Schaman_Dempster(26)

Question 584780: 3 foot lengths how many lengths are in a box of 96 feet
Click here to see answer by JBarnum(2146)

Question 584792: AT 40HR/WK X 4 MONTHS = ? TOTAL HRS
FOR A TOTAL OF 6 MONTHS, TOTAL # OF HRS = 1028.
Click here to see answer by spongetatle(6)

Question 584871: eighty percent of G is 352. What is G?
If G = 3/H + 4, then H =.
If P/ 5 = Q, then P/10 =.
what number is halfway between 2/9 and 4/5?
how is 4,345,000,000 written in scientific notation?
Click here to see answer by richwmiller(17219)

Question 584860: a solution of 79% is to be mixed with a solution of 21% to form 638 liters of 52% solution. how many liters of the 79% solution must be used

Click here to see answer by richwmiller(17219)

Question 585005: Hannah is mixing two types of Easter candy. The chocolates cost $5 a pound, and the caramels cost $4 a pound. If she creates 8 pounds worth $4.25 a pound, how much of the chocolate did she use?
Click here to see answer by richwmiller(17219)

Question 584774: Lemon drops worth $1.90 per pound are mixed with jelly beans that's cost $1.20 per pound to make 100 pounds of a mixture worth $1.48 person pound. How many pounds of each candy should be used?
I have the answer I just don't understand how to get it.
Click here to see answer by scott8148(6628)

Question 585098: First part : 256 ml of 32% solution HCL is mixed with 125 ml of 20% solution HCL and 265 ml H2O. To calculate how many percent solution will be obtained.
Second part: Than calculate how much HCL is needed to get 55% solution?
- I got the first part : (256 x 32)+(125 x 20)+(265) / 256+125+265= 16,9% solution.
So now I have 646 ml of 16,9 % HCL solution.
Second part : I guess I have 100% HCL, but I can't figure out how to calculate the ml's I need to get to 55%.
Thanks

Click here to see answer by richwmiller(17219)

Question 585245: A mixture of 6% disinfectant solution is to be made from 7% and 3% disinfectant solutions. How much of each solution should be used if 32 gallons of 6% solution are needed?
Click here to see answer by sofiyac(983)

Question 585248: How many liters of 60% alcohol solution and 30% alcohol solution must be mixed to obtain 3 liters of 40% alcohol solution?
Complete the table below, then solve.
60% solution 30% solution Final solution
Number of Liters x y
Liters of Alcohol

The answer is:
Liters of 60% solution = Liters
Liters of 30% solution = Liters

Click here to see answer by sofiyac(983)

Question 585249: Mr. Wilson invested money in two accounts. His total investment was $20,000. If one account pays 2% in interest and the other pays 5% in interest, how much does he have in each account if he earned a total of $550 in interest in 1 year?
In the 2% account: $
In the 5% account: $

Click here to see answer by mananth(16946)

Question 585304: how much water must be added to 500g of 30 acid solution in order to produce a 20% acid solution?
Click here to see answer by stanbon(75887)

Question 585310: Vince need 12 quarts of a 60% anti-freeze solution. He will continue an amount of 100% anti-freeze with an amount of a 50% anti-freeze solution. How many quarts of each solution should be mixed to make the required amount of the 60% anti-freeze solution?
Click here to see answer by nerdybill(7384)

Question 585605: A solution of 75% pesticide is to be mixed with a solution of 35% pesticide to form 440 liters of a 43% solution. How many liters of the 75% solution must be used?
Click here to see answer by mananth(16946)

Question 585731: Can you please help me on this:
How many liters of water are needed to dilute 20 liters of a 5% salt solution to a 1% solution?
Click here to see answer by richwmiller(17219)

Question 585736: A fuel oil distributor has 150000 gallons of fuel with 1.1% sulfur content, which exceeds pollution control standards of 0.8% sulfur content. How many gallons of fuel oil with 0.3% sulfur content must be added to the 150000 gallons to obtain fuel oil that will comply with the pollution control standards? Round answer to the nearest integer.
Click here to see answer by richwmiller(17219)

Question 585713: How much hydrogen peroxide 6% solution will you need to make 300ml of hydrogen peroxide 3%solution?

Click here to see answer by richwmiller(17219)

Question 585850: How many liters of pure alcohol must be added to 10 liters of a 70% solution to obtain a 90% solution?
I know the answer is 20 liters, but I need help with the equation I would use to figure this out on my own please.
Click here to see answer by josmiceli(19441)

Question 585849: The sum of the measures of the three angles of a triangle is 180 degrees. Find the threee angles of a triangle if two angles are the same the third angle is 60 degrees more than each of the other two.
AGGHH these word problems are killing me!!
Click here to see answer by scott8148(6628)

Question 586159: "How many litres of olive oil costing $5 per liter must be mixed with 135 litres of corn oil costing $3 per liter to make a blend costing $3.50 per litre." Thank You.
Click here to see answer by scott8148(6628)

Question 586247: A chemist wants to mix some 34% alloy with some 70% alloy to produce 30 ounces of a 40% alloy. How many ounces of each strength should he use?

Click here to see answer by stanbon(75887)

Question 586424: The meat department in a grocery store needs 200lb of hamburger that is 80% lean beef. How many pounds of 78% lean and 85% lean musted be mixed?
Help!! I wish I was better at word problems. Thanking you in advance for your help.
Click here to see answer by nerdybill(7384)

Question 586575: In which quadrant does the point (-6,3) lie?
Click here to see answer by tw23279(14)

Question 586703: how many grams of water must be added to 50 grams of a 30% acid solution in order to produce a 20% acid solution?

Click here to see answer by ad_alta(240)

Question 586782: How many lbs of cat food A, containing 11% protein, need to be blended with cat food B, containin 16% protein, to obtain 500 lbs of a blend with 13% protein?
What I have so far:
1st mixture + 2nd mixture=total mixture
x(.11)+x(.16)= 2x(.13)
I am not sure where to go from here! Thank you for any help.
Click here to see answer by scott8148(6628)

Question 586882: I'm really struggling on how to set up these word problems and my text book doesn't offer that many examples. Please help!

The manager of a farmer's market has 500lb of grain that cost $1.20 per pound. How many pounds of meal coasting $.80 per pound should be mixed with the 500 lb of grain to producea mixture that costs $1.05 per pound?
Click here to see answer by scott8148(6628)

Question 587391: How many gallons of a 10% acid solution and a 30% acid solution need to be mixed to make 20 gallons of a 22% acid solution?
Click here to see answer by richwmiller(17219)

Question 587391: How many gallons of a 10% acid solution and a 30% acid solution need to be mixed to make 20 gallons of a 22% acid solution?
Click here to see answer by fcabanski(1391)

Question 587503: A baker wants to make a 15-pound blend of flour that costs $.60 per pound. The blend is made using a rye flour that costs $.70 per pound and a wheat flour that costs $.40 per pound. How many pounds of each flour should be used?
Click here to see answer by richwmiller(17219)

Question 587821: How many liters of a 40% solution must be mixed with 60 liters of a 70% solution to get a 50% solution?
Click here to see answer by josmiceli(19441)

Question 588138: A bicycle path is 7 miles long. A man walks from one end at the rate of 3 mph. At the same time, a friend bicycles from the other end, traveling at 11 mph. In how many minutes will they meet?

Click here to see answer by stanbon(75887)

Question 588168: Can you please help me with this problem?
A rug is made by weaving 16 lb of yarn that is 60% wool with a yarn that is 15% wool. How many pounds of the yarn that is 15% wool must be used if the finished rug is to be 33% wool?
Click here to see answer by josmiceli(19441)

Question 588167: Can you please help me with this problem?
How many gallons of a 10% acid solution must be mixed with 5 gal of 25% acid solution to make a 15% acid solution?
Click here to see answer by mananth(16946)

Question 588219: A merchant has coffee worth $5 a pound that she wishes to mix with 70 pounds of coffe worth $8 a pound to get a mixture that can be sold for $7 a pound. How many pounds of the $5 coffee should be used?
Click here to see answer by nerdybill(7384)

Question 588213: Brass is an alloy containing only copper and zinc. A particular batch of brass is analysed and found to contain 35g of copper and 15g of zinc. How much zinc would need to be added so that the mass of zinc in the brass is 40% of the total mass of the solid? (Show an algebraic solution for the problem)

thanks! :)
Click here to see answer by ankor@dixie-net.com(22740)

Question 588212: 40g alloy containing 35% gold to be melted with 20g alloy containing 50% gold. how much % of gold resulting from alloy??
Click here to see answer by ankor@dixie-net.com(22740)

Question 588533: what is the 40 percent of 1380 dollars
Click here to see answer by stanbon(75887)

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