11/12/14

Find out the sum of the following serie:
5+9+13+17+...+89
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11/11/14

. Let a, b, c, x, y be positive real numbers such that ax + by = bx + cy = cx + ay. Prove that b = c.
This is a proof based algebra inequality problem, It has 5 variables and it's an inequality 
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11/11/14

story problems
A box of chalk and 2 staplers cost $10.  3 boxes of chalk and 2 staplers cost $18.  Find the total cost of 1 box of chalk and 1 stapler.
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11/11/14

HELP! AREA PROBLEMS
A rectangle is 8m longer than it is wide. If the length is increased by 2m and the width is increased by 2m, the area is increased by 68m squared, Find the original dimensions
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11/11/14

A developer wants to envlose a rectangular grassy lot that borders a city street for parking.
college algebra.   A developer wants to enclose a rectangular grassy lot that borders a city street for parking. If the developer has 336 feet of fencing and does not fence the side along the... more
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11/11/14

if a positive integer x is divided by 32,the remainder is 25.which of the following could be the remainder when 2x is divided by 12?
sorry sir I forget to write positive integer x
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11/11/14

what is the smallest positive integer n for which 324 is a factor of 6 power n
and one more question if a positive integer is divided by 32,the remainder is 25.which of the following could be the remainder when 2xis divided by 12
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11/10/14

exponent: (a5)3
Im doing exponents (a5)3
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11/09/14

Rachel has 14 red, 4 blue, and 3 yellow towels. In how many ways can the towels be arranged if one blue towel is at each end of the row?
Rachel has 14 red, 4 blue, and 3 yellow towels. In how many ways can the towels be arranged if one blue towel is at each end of the row?
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11/09/14

Factor Quadratic
x^2-11x+28   X^2-34x+64   15x^2+43x+30   16x^2-1   -216x^3+1   Please help I am so confused
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11/09/14

Factor Quadratic
y^2+18xy+81x^2   and  x^2+2x+21
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11/09/14

Factor Quadratic
-25x^2-45x-18 and  60x^+95x+25   I am not sure how to figure this question out.
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11/09/14

word problem.
  at a fruit factory there are 3 crates of fruit. One crate contains only apples. One crate contains only oranges.The other crate contains both apples and oranges. Each crate is labeled. One reads... more
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11/09/14

For the data set whitch is true
18 17 23 20 21 22 19 a)the range is 20 b)the mode is 20 c) the data set is skewed left  d) the mean is 20
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11/08/14

WORD PROBLEM
IF THERE WERE ABOUT 200 REGISTERED CARS FOR EVERY 1.000 PEOPLE, WHAT WOULD BE A GOOD ESTIMATE FOR THE NUMBER OF REGISTERED CARS IF THE POPULATION IS 13,274,782?
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11/08/14

Please solve the following 3 word problems
Write an inequality, but do not solve   1.  The high temperature for the day is predicted to be 86 degrees F.  Use the formula F = 9/5C + 32 to write an inequality in degrees Celsius for the... more
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11/08/14

5 trays of cookies, 135 cookies total. tray 1 and 2 has 47 cookies, tray 2 and 3 have 3 cookies, tray 3 and 4 have 48 cookies, tray 4 and 5: 50 cookies.
Please give step by step as to how to determine how many cookies are on each tray WITHOUT using the guess and check strategy. Julia has 5 trays of cookies arranged as follows: There are 135 total... more
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11/08/14

How fast was she paddling, and what was the speed of the current?
Salina was paddling up and down the river over Labor Day weekend.  She travelled 3 miles downstream in 2 hours.  It took her twice that long to get back to her car.  How fast was she paddling, and... more
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11/08/14

System Of Equations
Using complete sentences, explain which method you would use to solve the following system of equations and why. In your answer, include the solution to one of the variables and how you found it... more
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11/08/14

select the approximate value that are solutions to f(x)=0, where f(x) = -4x^2+6x+3
Stuck on this problem.please help
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11/07/14

Why I don't see anything wrong with this inequality?
Describe and correct the error in solving the inequality.   -4m≥16   m≥-4
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11/07/14

How do you determine whether y=3x-8+3y=7 is parallel or perpendicular
Parallel or perpendicular for the above question.  How do you determine
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11/07/14

Parabola Story Problem
A sales person sells an average of 45 cases when they visit 25 per week. Each time they visit an additional store per week the average sale per store decreases by one case. How many stores should... more
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11/07/14

Math word problem
Some students stood evenly spaced in a circular formation. They counted off at 1 and continued by consecutive integers once around the circle. How many students were in the circle formation of... more
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11/06/14

A family deposited $8000 into an accout 6 years ago. the total interest earned is $1200. what is the yearly rate?
I know the formula I+prt but i keep getting 40% and I know thats wrong
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