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Question 85501: Please help me with this problem as I am terrible at math. It comes from a worksheet.
A pharmacist has 1 liter of a solution that is 22% alcohol. How much pure alcohol must be added to bring the solution up to 27% alcohol

Click here to see answer by Nate(3500)

Question 85592: Gina is going to a party and was asked to bring 3lbs of mixed nuts that includes cashews and peanuts. If the cashews cost $6.00 per pound and the peanuts cost $1.50 per pound, how many pounds of each did she buy if her total cost was $9.00?
I know the answer from doing it in my head, I just need help setting up the equation properly on paper. Thanks for your input / time!
Click here to see answer by ptaylor(2198)

Question 85988: A researcher orders a broth of 7.5% glucose for her lab. However, she needs a stronger broth, one that is 24.9% glucose. Fortunately, she has 26.9 liters of 36.1% glucose broth in the stock room. How much 24.9% glucose broth can she make?
Click here to see answer by Earlsdon(6294)

Question 85990: An investment club wants to invest $17,000 in two simple interest accounts. One account earns 6.5% annual simple interest and the other account earns 8.3% annual simple interest. How much should be invested in each account so that both accounts earn the same annual interest?
Click here to see answer by checkley75(3666)

Question 85986: How many kilograms of coffee beans selling for $2.40 per kilogram should be mixed with 4 kilograms of coffee beans selling for $3.60 per kilogram to obtain a mixture selling for $2.88 per kilogram?
Click here to see answer by stanbon(75887)

Question 85989: Marcus is inventing a new cookie recipe. He'd like the recipe to contain both walnuts and gourmet chocolate chip chunks. Walnuts sell for $1.40 per pound and gourmet chips sell for $2.60 per pound. How many pounds of walnuts should be mixed with 3 pounds of gourmet chips to obtain a mixture selling for $1.76 per pound?
Click here to see answer by ptaylor(2198)

Question 86218: Tickets for an event cost $4 for children, $12 for adults, and $ 7 for senior citizens. The total ticket sales were $ 1920. There wee 50 more adult tickets sold than child tickets, and the number of senior citizen tickets wre 4 time the number of child tickets. How many of each ticket were sold.
Click here to see answer by ankor@dixie-net.com(22740)

Question 86237: How much pure water must be mixed with 8 pints of 70% developer to produce a mixture that is 11% developer?

Click here to see answer by checkley75(3666)

Question 86260: How many pounds of salted nuts selling for $3.40 per pound should be mixed with 3 pounds of salted nuts selling for $2.00 per pound to obtain a mixture selling for $2.98 per pound?

Click here to see answer by ptaylor(2198)

Question 86258: A researcher orders a broth of 7.5% glucose for her lab. However, she needs a stronger broth, one that is 24.9% glucose. Fortunately, she has 26.9 liters of 36.1% glucose broth in the stock room. How much 24.9% glucose broth can she make?

Click here to see answer by ptaylor(2198)

Question 86253: An investor placed a total of $12,000 in two simple interest accounts. One account earned a simple interest rate of 6.2%, and the other earned a simple interest rate of 3.8%. The two accounts earned a total of $552. How much was invested in each account?

Click here to see answer by scianci(186)

Question 86251: An investment club wants to invest $50,000 in two simple interest accounts. One account earns 8.4% annual simple interest and the other account earns 11.9% annual simple interest. How much should be invested in each account so that both accounts earn the same annual interest?

Click here to see answer by scianci(186)

Question 86252: The Knox Valley investment club invested $9000 at 7.8% annual simple interest. How much additional money should they invest at an annual simple interest rate of 5.1%, so that the total annual interest earned from the two accounts is 5.9% of the total investment?

Click here to see answer by scianci(186)

Question 86688: A chemist is making a solution that is to be 55% chlorine. He has one solution that is 40% chlorine and another that is 65% chlorine. He wants 100 liters of the final solution. How much of each should he mix?

Click here to see answer by checkley75(3666)

Question 86752: I need some help with this one. Could someone show me step by step how to figure this one out? Thank You.
The base of a ladder is 11 feet away from the wall. The top of the ladder is 20 feet from the floor. Find the length of the ladder to the nearest thousandth.
Click here to see answer by Flake(45)

Question 86895: Hi, I'm Meagan and I am STUCK!! I dont even know where to start. It would be greatly appreciated if I could have your help; my graduation depends on it. At the website http://access.dl.desire2learn, there is a log-in; please enter name: Meagan.Guyton and password: Curtis7; scroll down; click on algebra II course; click on content at top; click on module at side; go to lesson 2.13 business trip for a insight and a picture of the apartment.THANK YOU SOOO MUCH YOU DONT KNOW HOW MUCH THIS MEANS TO ME AND MY FUTURE AND MY FAMILY!!!!!!!

Part 1: Using your knowledge of polynomial addition and subtraction (combining like terms), answer the following questions.
Find entire length of this two bedroom apartment in terms of x.
Find the entire width of this two-bedroom apartment a (not counting the patio) in terms of x. (Be careful, the width of bath 1 is not given, but the width of the entry is the same as the width of the pantry. With that information, you can find the width of the left hand side of the house.)
Part 2: Using your knowledge of the distributive property and polynomial addition and subtraction, answer the following questions. (Remember, P=2L+2W.) Write your answers in the same assignment labeled Part 2.
Find the perimeter of the entire 2-bedroom apartment (excluding the patio) in terms of x.
Find the perimeter of the living room and dining room in terms of x.
Find the perimeter of the master bedroom, excluding the sitting area and the closets.
Part 3: Using your knowledge of solving linear equations, answer the following questions. Write your work and answers in the same assignment labeled Part 3.
If the perimeter of the living room and dining room is 60 feet, what is the value of x?
If the perimeter of the master bedroom excluding the sitting area and the closets is 42 feet, what is the value of x?
If the length of the entire apartment is 57 feet, what is the value of x?
Part 4: You have reviewed polynomial multiplication and division in this module, practice now. (Remember, A=LW.)
Find the area of the entire living room/dining room.
Find the area of the patio.
Find the area of the entire apartment (excluding the patio). Note: don't forget to subtract for the cutout area in the upper left corner.
If the area of the kitchen was 2x-4, what would be the width? Write the expression or number for the width.
If the area of the dining room and living room is 300 sq. ft., what is the equation that would be used to solve for x? Write the equation with zero on the right, ready to solve.
If the area of the entire apartment is 800 sq. ft., what is the equation that would be used to solve for x? Use the length and width from questions 1 and 2. Do not worry about the area of the patio or the corner that is cut out of the living room/dining room. Write the equation with zero on the right, ready to solve.
Part 5:
Find the area of your bedroom, Label it A. Using the dimensions of the Master Bedroom in Figure 1, Write an equation using (x + 8) as length- L and (2x � 3) as the width-W and the actual area you found for your room-A. Manipulate the equation so that it is set equal to zero, in the form: ax2+ bx + c = 0... DO NOT SOLVE!!!

Click here to see answer by jim_thompson5910(35256)

Question 86889: 1.POPULATION
Suppose each person on the planet stood on a piece of ground that was 3 feet by 3 feet. What are the dimensions of the smallest square piece of land that could hold everyone on the planet? USE SENSIBLE UNITS!

2. A large rubber ball was floating in a lake when the lake froze. The ball was carefully removed without breaking the ice, leaving a hole 3 feet 4 inches across and 8 inches deep. What was the radius of the ball? (Answer to the nearest 0.1 inches).

3. You have 10 barrels of nails. Some of the barrels are full of nails that weigh 1 ounce. The others are full of nails that weigh 1.1 oz. How can you identify which barrels have which kind of nails while using a digital scale only ONE time?

Click here to see answer by scott8148(6628)

Question 87038: How many gallons of pure anti-freeze should be mixed with 60 gallons of a 25% solution to obtain a 40% solution?
Click here to see answer by scianci(186)

Question 87288: An investment club wants to invest $60,000 in two simple interest accounts. One account earns 9.4% annual simple interest and the other account earns 10.9% annual simple interest. How much should be invested in each account so that both accounts earn the same annual interest?

Click here to see answer by checkley75(3666)

Question 87287: A researcher orders a broth of 8.5% glucose for her lab. However, she needs a stronger broth, one that is 25.9% glucose. Fortunately, she has 26.9 liters of 35.1% glucose broth in the stock room. How much 24.9% glucose broth can she make?
Click here to see answer by ankor@dixie-net.com(22740)

Question 87916: Okay, I am taking an online Math class and have come across all of the types of work problems, Mystery #s, Money, Mixture & Motion problems. I am so stuck on this Mixture Problem. :
Ms. Post wants to mix 2 kinds of cereal. Type A sells at $2.20/lb and Type B sells at $4.20/lb. How many lbs of Type A should she use if she wants a 20 lb mixture selling at $3.00/lb.?
Well, I tried using problems in my lesson as an example for the chart.
This is what I came up with and am pretty sure I got it wrong...
2.20x+4.20(20-x)=3.00(20)
2.20x+84-4.20x=60
+4.20x -84=
6.4x divided by itself, cancelling the 6.4, then dividing -24 by the 6.4, I ended up w/ x=-3.75
** I'm pretty sure I got this wrong. SO could you please help me so I can finish my work? Thanks very much for anything you can give me.!!!
Click here to see answer by stanbon(75887)

Question 87918: How many litres of water must be added to 50 L of a 30% acid solution in order to produce a 20% acid solution?
Click here to see answer by stanbon(75887)

Question 87963: This is from a worksheet: In a chemistry class, 6 liters of a 4% silver iodide solution must be mixed with a 10% solution to get a 6% solution. How many liters of the 10% solution is needed?
Click here to see answer by stanbon(75887)

Question 88005: A chemical solution contains 1% salt. How much salt is in 2.5ml of solution?
Would that be 1% x 2.5ml = .025?
Click here to see answer by stanbon(75887)

Question 88098: .
Click here to see answer by malakumar_kos@yahoo.com(315)

Question 88274: A man has a choic of a white, yellow, or blue shirt. He also may select a red tie or a green tie. How many different outfits can he make of 1 shirt and 1 tie?
Click here to see answer by stanbon(75887)

Question 88095: a submarine descended to a depth of 479 feet and then rose 320 feet.how far below the surface was the submarine and how would you represent this with a signed number...

make up a problem using signed numbers.you can use sea level,saving and deposits in a bank account,the stock market,football yardage gained and lost,or anything that you chose.
Click here to see answer by tutor_paul(519)

Question 88416: give me an alternate name for the following words
Inventory Management system?
control Management system?
Click here to see answer by stanbon(75887)

Question 88247: A gourmet food shop mixes nuts selling at $16/lb with fruit selling at $3/lb. They want a mixture of 7lbs to sell at $12/lb. How many pounds of each should they use?
Click here to see answer by ankor@dixie-net.com(22740)

Question 88548: The number N of guests that arrive at a mall food court each hour can be approximated by N = -12x2 + 110x + 35, where x is the number of hours after 11:00 a.m. At what times, to the nearest minute, are 200 guests per hour arriving at the food court?

Click here to see answer by checkley75(3666)

Question 88659: Pool problems:
A) Directions say to add 1 gallon of algae guard for every 50,000 gallons of water for the initial application. My pool currently contains 3,800 gallons. How much algae guard do I need to apply for the initial treatment of the pool in ounces?
B) Second part of instrutions say to add 1 quart per 10,000 gallons every 3-5 days. How much algae guard do I add to my pool every 3-5 days in ounces?
Click here to see answer by checkley75(3666)

Question 77863: martina leaves home at 9am, bicycling at a rate of 24mi/h. Two hours later, john leaves, driving at the rate of 48 mi/h. at what time will john catch up with martina?
Click here to see answer by checkley75(3666)

Question 88751: Can someone help me with this please
thank you
One recipe calls for 1/4 teaspoon vanilla. A second recipe requires for 1/2 teaspoon vanilla, and a third recipe calls for 1/8 teaspoon vanilla. How much vanilla is required to make all three recipes?
Click here to see answer by ankor@dixie-net.com(22740)

Question 88945: Story Problem:
If I want to make the perfect 12 ounce cup of chocolate milk, it requires that the mixture is 42% syrup. What i have now is 8 ounces of a milk/syrup mixture that I know contains 30% syrup. What must the syrup concentration be in the remaining mixture that I must add in order to achieve perfection?
Click here to see answer by ptaylor(2198)

Question 89447: A pot contains 6 L of brine at a concentration of 120 g/L. How much of the water should be boiled off to increase the concentration to 200 g/L?
Click here to see answer by kev82(151)

Question 89664: How many ounces of a 20% alcohol solution must be mixed with 5 ounces of a 50% alcohol solution to get a mixture that is 30% alcohol?
I have my first equation set up as 20% + 50% =30%
I then get confused and need help please.
Click here to see answer by scott8148(6628)

Question 89579: x kilo of coffee worth P100 per kilo is mixed with coffee worth P90.00 per kilo to produce 200 kg of coffee worth P95 per kilo. Find x.
Click here to see answer by ankor@dixie-net.com(22740)

Question 90287: I need help!
I don't know how to make a formula for this word problem:
Two numbers are in the ratio of 7 to 10. If 24 is added to each number, the resulting numbers are in the ratio of 1 to 2. Find the smaller of the two original numbers.
Click here to see answer by Edwin McCravy(20055)

Question 90809: A wholesaler sells coffee at 50 cents a kilogram. She mixes one kind worth 65 cents a kilogram with another worth 40 cents. How much of each kind does she use to make 100 kg of the mixture.
It neeeds to be solved as a table. "65 cent kind" and "40 cent kind" and "Mixture" on the colums
THANKS, I REALLY NEED IT
Click here to see answer by maths0503(3)

Question 91234: The directions on a concentrated cleaner state that 3 tablespoons of concentrate make 345 ounces of fluid. How many ounces of cleaning fluid will 2 tablespoons of cleaner make?
Thank you!
Click here to see answer by stanbon(75887)

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