10/18/15

A pharmacist has a 40% acid solution and a 25% acid solution. How many liters of each must be mixed to from 144 liters of a 27% acid solution?
A pharmacist has a 40% acid solution and a 25% acid solution. How many liters of each must be mixed to from 144 liters of a 27% acid solution?
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10/14/15

word problem, two supermarkets have the same laundry detergent on sale.
Supermarket A offers a 33% discount off the regular price.  Supermarket B sells it at the regular price but in bonus packs which contains 50% more   Which supermarket offers a better deal?
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10/13/15

algebra word problem
For a school play, student tickets cost 40 cents and adults tickets were 75 cents. The total receipts for 90 tickets were $46.50. How many of each kind were sold?
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10/13/15

algebra word problem
Jim had $2.25 in dimes and nickels. If he had twice as many dimes as nickels, how many of each coin did he have?
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10/12/15

nico is saving money for his education. he invests some money at 5%, and $1400 less than that amount at 3%.
the investments produced a total of $118 interest in 1 yr. how much did he invest at each rate?
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10/11/15

I need help simplifying the polynomial (t-5)^2 (t+5)^2
I'm really struggling with the steps and applying the formula (A-B)^2=A^2-2AB+B^2  I'd really appreciate any help I can get but please show the work so I can learn from it. I seem to loose my... more
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10/07/15

Question about amortization
How is interest calculated on an amortization schedule?
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10/05/15

Did Bridget stay in her budget?
Bridget went on a 3 day road trip and estimated she would spend no more than $150 on gas.                     Day 1            Day 2          Day 3 Distance    330 miles     295miles Time      ... more
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10/05/15

rsp question
What will be the amount in an RRSP after 30 years if contributions of $4000 are made at the beginning of each year for the first 10 years, and contributions of $8,000 are made at the beginning of... more
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10/04/15

word problem please help
the gravitational attraction A between two masses varies inversely as the square of the distance between them. The force of attraction is 2.25lb when the masses are 4ft apart what is the attraction... more
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10/04/15

How many gallons of a 60% sugar solution should be mixed with 4 gal of a 35% sugar solution to get a 50% sugar solution?
 How many gallons of a 60% sugar solution should be mixed with 4 gal of a 35% sugar solution to get a 50% sugar solution?
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10/04/15

A student wishes to make a small model of a triangular mainsail in order to study the effects of wind on the sail. The he smaller model will be the same shape
A student wishes to make a small model of a triangular mainsail in order to study the effects of wind on the sail.    The he smaller model will be the same shape as a regular-size sailboat's... more
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10/03/15

how do you factor an expression using GCF
How do you factor an expression using GCF ?
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10/01/15

The Statue of Liberty in New York City has a nose that is 4 feet 6 inches long. What is the approximate length of one of her arms?
Really need help with this
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09/30/15

The Sum Of Two Numbers Is -23, And The Difference Of The Larger And The Smaller Numbers Is 81. What Are The Two Numbers?
The Sum Of Two Numbers Is -23, And The Difference Of The Larger And The Smaller Numbers Is 81. What Are The Two Numbers?   x+p=-23 x-p=81       Solve for x and p
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09/29/15

math help needed
Apex Fabricating wants to accumulate $575,000 for an expansion expected to begin in four years. If today Apex makes the first of equal quarterly payments into a fund earning 5.95% compounded... more
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09/29/15

math help needed
If RRSP contributions of $4630.02 at the end of every six months are projected to generate a plan worth $660,000 in 30 years, what nominal rate compounded semi-annually and effective rates of... more
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09/29/15

Barbara is 142 cm tall. Th is 2 cm less than 3 times her height at birth. Find her height at birth.
its a math problem  
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09/28/15

What is the limiting factor in this balanced equation, and how many grams of both products are produced?
4 C3H9  + 24 O2 --> 12 CO2 + 18 H2O
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09/27/15

College Algebra...HELP
Two brothers, Mark and Charles, each inherit $29000. Mark invests his inheritance in a savings account with an annual return of 3.2%, while Charles invests his inheritance in a CD paying 5.3%... more
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09/27/15

this year there ae 960 scholarship applications, which 120% of the number of applicantions last year. Find the number of applications last year.
I need help solving this   this year there ae 960 scholarship applications, which 120% of the number of applicantions last year. Find the number of applications last year.
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09/27/15

Newspaper circulation
The average life expectancy for an elephant is 24 years longer than the life expectancy for a chimpanzee. If the total of these life expectancies is 130 years, find the life expectancy of... more
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09/27/15

If a hair dresser chose A she will pay 1200 a month and$45. B 1800 for rent and 60. How may haircuts in one month to earn the same at both locations
work is needed to be shown.
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09/27/15

2qt. of a sugar solution was mixed with 9qt. of a 60% sugar solution to make a 50% sugar solution. Find the percent concentration of the first solution.
can you please explain it step by step mathematically? 
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09/24/15

Find the average cost per calculator of the additional 340 calculators over 370.
The cost of producing 370 calculators is $2675. Producing 710 Calculators would cost $4715. Find the average cost per calculator of the additional 340 calculators over 370. Answer: $_______ per... more
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