01/24/15

How many liters of a 9% solution of salt should be added to a 27% solution in order to obtain 846 liters of a 20% solution?
I need help with tis problem please help
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01/24/15

how do you draw and solve this
nate and nick are doing yard work for every 2 hours nate works nich workes 3 hours . if both of them work for a total of 25 hours how many hours did nate work . i need an answer asap and how to... more
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01/23/15

word problem
a wall can be painted in 3 minutes by three men. the first can could complete it alone in 6 min the seciond man could complete it alone in 10 min how man minutes would it take for the third man... more
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01/23/15

-4/5 - 1/2
I confused
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01/23/15

My average is 82% (worth 70% in the course) and I want to know what I need to get on the exam (worth 30%) that will get me a 75% or higher overall
82% =0.7   75% =1   x= 0.3   what does x equal?
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01/22/15

What is 60% of 95?
Please say answer and explan, thank you.
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01/22/15

5x-3y=17 and -4x+8y=20
These are two problems that my daughter is having trouble figuring out.  
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01/22/15

What percent of 50 is 80?
I only dont fully understand how to set this problem up or solve it. There  can be 50 is what percent of 80 50 is what percent of 80....   I just dont understand, please help me. Explain all I... more
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01/22/15

Write solution as an ordered pair using substitution
Y=3X-1 Y=3X+5
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01/22/15

A lab needs to make 100 gallons of an 18% acid solution by mixing a 12% acid solution with a 20% solution. How many gallons of each solution are needed?
 A lab needs to make 100 gallons of an 18% acid solution by mixing a 12% acid solution with a 20% solution. How many gallons of each solution are needed?
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01/22/15

How many times does the graph y equals x squared minus 4 cross the c-axis?
Algebra 1 help for homework. I don't understand this! I need it done by tomorrow morning.
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01/22/15

Three Students came to the bake sale to shop. The sum of their ages is 33. The product of their ages is 1,320. How old are they?
Three Students came to the bake sale to shop.  The sum of their ages is 33.  The product of their ages is 1,320.  How old are they?
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01/22/15

What are the ages of Jess, her son and her mom right now?
The ratio of Jess's age to her mom's age is now 6:11. The ratio of Jess's age to her sons Henry's age is 1:12. In 4 more years, the total of all ages (Jess, Jess's mom and Jess's son) will be 117.... more
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01/22/15

what is b/15=15
please help me ASAP
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01/22/15

Gloria rides a bike 8 miles in 40 minutes. Nanette rides a bike 5 miles in 30 minutes. Who will bike the farthest?
gloria rides a bike 8 miles in 40 minutes. Nanette rides a bike 5 miles in 30 minutes.
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01/22/15

how do u do 8h-5=11h-14
How do u do 
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01/22/15

distance between (1, 7), and (-7, 1)
 HELP 
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01/22/15

A copper canister is in the shape of a right cylinder and has a radius of 7 centimeters and a height of 12 centimeters.
A copper canister is in the shape of a right cylinder and has a radius of 7 centimeters and a height of 12 centimeters. The copper used to make the canister costs $.002 per square centimeter. Find... more
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01/22/15

the length of a rectangle is 5 m more than twice the width, and the area of the rectangle is 42 m squared. find the dimensions
the length of a rectangle is 5 m more than twice the width, and the area of the rectangle is 42 m squared. find the dimensions
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01/22/15

Solve for x
Solve for x:  18 + 2x -7=3x
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01/22/15

NEED HELP ON THIS
The Sugar Sweet Company will choose from two companies to transport its sugar to market. The first company charges $4500 to rent trucks plus an additional fee of $150.25 for each ton of sugar. The... more
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01/22/15

Find the number of liters of 20% acid solution in the new mixture.
Roman mixes 12 liters of 8% acid solution with a 20% acid solution, which results in a 16% acid solution. find the number of liters of 20% acid solution in the new mixture.
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01/22/15

a chemist has 800g of a dye solution that is 20% of its original strength. How much dye must be added to increase the strength to 50%?
i am stuck on this problem and i need help as soon as possible
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01/21/15

7th Grade math. Step by Step
A student answers 90% of the questions on a math exam correctly. If she answers 27 questions correctly, how many questions are on the exam?
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01/21/15

seperate 144 into two groups so that one group will be 12 less than twice the other
fdddddddddddddddddddddddddddddddddd
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