# Questions on Algebra: Equations answered by real tutors!

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 Algebra: Equations Solvers Lessons Answers archive Quiz In Depth

 Question 46949: the price of an item is given by p=2x^2-100. find the polynomial that represents the revenue generated fro the sale of x items. Click here to see answer by stanbon(57222)

 Question 46898: the price of an item is given by p=2x^2-100. find the polynomial that represents the revenue generated from the sale of items. Click here to see answer by fractalier(2101)

 Question 47008: The lenght of a rectangle is 2 in. more than 8 times its width. If the area of the rectangle is 210 sq.in, find the dimensions of the rectangle. Click here to see answer by Nate(3500)

 Question 47005: solve 1/2(x-1)-1/4(1-x)=0 1/2= one half 1/4= one fourth Click here to see answer by Nate(3500)

 Question 46980: John has 24 coins in his pocket-nickels, dimes and quarters-amounting to \$3.80. If he has twice as many nickels as quarters, how many dimes does he have? Click here to see answer by venugopalramana(3286)

 Question 47115: Percentage: I have 49 apples. 38 of the apples are red. What is the percentage of red apples? Click here to see answer by tutorcecilia(2152)

 Question 47136: Property sold for \$120,000, 15% more than when it was bought. What was the original cost? Click here to see answer by checkley71(8403)

 Question 47130: Graph the function as a solid curve and its inverse as a dashed curve on the same axes. f(x) = square root x+6 Click here to see answer by Nate(3500)

 Question 47199: I think I did the first part correctly, but got stuck on what to do next..can you please help me? Thank you! If 7x -3 = 25, then what is 2x + 9 3+3= 0 25 + 3 = 28 7x = 28 7x divided by 7 = x 28 divided by 7 = 4 Is that right so far, and what do I do next if it is? Thank you in advance!!!!! Click here to see answer by tutorcecilia(2152)

 Question 47197: Hello, just want to make sure I showed the steps right: 3x + 5 = 2x - 9 This is what I did: 5-5 = 0 9-5 = -14 2x - 2x = x 2x - 2x = 0 x = -14 final answer Thank you!!!!!! Click here to see answer by tutorcecilia(2152)

 Question 47244: Please help having trouble. Write the expression as a single logarithm with coefficient of 1. Assume that all variables represent positive real numbers. 2 log4 (3x - 4) + 4 log4 (6x - 5) 6 long8 (9x+9) Click here to see answer by miguel(1)

 Question 47235: find all positive values for k for which each of the following can be factored x^2-kx+17 Click here to see answer by checkley71(8403)

 Question 47285: Find the value of k so that the equation will have exactly on rational solution. Click here to see answer by checkley71(8403)
 Question 47285: Find the value of k so that the equation will have exactly on rational solution. Click here to see answer by rah279852(1)

 Question 47366: Hello, I could use some help with this problem: 12/x+5 + 5/x = 20/x Thank you, Louis Click here to see answer by Nate(3500)

 Question 47419: factor each polynomial by grouping the first 2 terms and the last two terms. x^5+x^3-2x^2-2 Click here to see answer by Nate(3500)

 Question 47420: factor the polynomial completely by factoring out any common factors and then by grouping. Do not combine like terms. 3a^3+3ab^2+2a^2b+2b^3 Click here to see answer by Nate(3500)

 Question 47416: the area of a rectangle of length x is given by 3x^2+5x. find the width of the rectangle Click here to see answer by Nate(3500)

 Question 47448: square root 4x - 3 = 2x - 3 Click here to see answer by longjonsilver(2297)

 Question 47608: Solve the formula for the specified variable A=(1/2)h(b^1+ b^2) for b^1 Click here to see answer by Nate(3500)