# Questions on Algebra: Equations answered by real tutors!

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 Algebra: Equations Solvers Lessons Answers archive Quiz In Depth

 Question 74141: Solving equations using more than one property. 3(r+4)=21, 3(r-4)=27 Click here to see answer by bucky(2189)

 Question 74153: I can't quite figure this one out. The value for t=6 but I can't see how we get there. Greg t squared-t/2=15 Click here to see answer by jim_thompson5910(28595)

 Question 74159: The difference between twice a number and 9 is 16.Find the number? Click here to see answer by vidhyak(94)

 Question 74171: Not in book. Find each product (5m - 6)(5m - 6) (6x^2 - 5x + 2)(3x^2 + 2x +4) Could you show me how to work these out for examples for the rest of my homework. Thanks Click here to see answer by checkley75(3666)

 Question 74269: Evaluate 2m -5n/n+3p if m = 2, n = 4, and p = 1. Click here to see answer by rmromero(383)

 Question 74268: Use the distributive property to remove the parentheses in the following expression. Then simplify your result if possible. 3(6 + 7) Click here to see answer by rmromero(383)

 Question 74266: Evaluate. 81 χ 9  16 χ 8 Click here to see answer by rmromero(383)

 Question 74265: Evaluate. | 7 | + | 13 | Click here to see answer by rmromero(383)

 Question 74324: Please show me how to work this problem step by step 3 0ver 4 - x =2x Click here to see answer by funmath(2925)

 Question 74246: 1) Use the arithmetic sequence of numbers 1, 3, 5, 7, 9,to find the following: a) What is d, the difference between any 2 terms? Answer: Show work in this space. b) Using the formula for the nth term of an arithmetic sequence, what is 101st term? Answer: Show work in this space. c) Using the formula for the sum of an arithmetic sequence, what is the sum of the first 20 terms? Answer: Show work in this space d) Using the formula for the sum of an arithmetic sequence, what is the sum of the first 30 terms? Answer: Show work in this space e) What observation can you make about these sums of this sequence (HINT: It would be beneficial to find a few more sums like the sum of the first 2, then the first 3, etc.)? Express your observations as a general formula in "n." Answer: Click here to see answer by jim_thompson5910(28595)

 Question 74361: 4x2y/2xy3= The 2 after the x is squared. The 3 after the y is cubed. I tried listening in class but it's not clicking. I need some big help! Thankyou. Click here to see answer by checkley75(3666)
 Question 74361: 4x2y/2xy3= The 2 after the x is squared. The 3 after the y is cubed. I tried listening in class but it's not clicking. I need some big help! Thankyou. Click here to see answer by jim_thompson5910(28595)

 Question 74416: Write the equation of the line that passes through point (1, 8) with a slope of 0. Click here to see answer by josmiceli(9678)

 Question 74414: Which of the ordered pairs is a solution for the equation 5x  4y = 20? A) (4, 5) B) (0, 5) C) (0, 5) D) (4, 0) Click here to see answer by josmiceli(9678)

 Question 74417: Given f(x) = 5x2  3x + 1, find f(2). Click here to see answer by cathieb1225(41)

 Question 74415: Rewrite the equation 4x  10y = 11 as a function of x. Click here to see answer by cathieb1225(41)

 Question 74508: A total of 28 bikes have 64 wheels. Some have 2 wheels and some have 3. How many have three wheels? Click here to see answer by josmiceli(9678)

 Question 74651: Variables on Both Sides Please show me the steps. The answer is a -3 4a-8=9a+7 a=______ Thank you very much! Click here to see answer by checkley75(3666)

 Question 74674: What is the equation of a horizontal line that passes through the point at (-2,-3)? I have been working on this problem and I still do not understand it. May some one please help me? Thank you Click here to see answer by jim_thompson5910(28595)

 Question 74678: the question reads: Toy World, a retail chain, placed a seasonal order for stuffed animals from a distributor. Large animals cost \$20.00 and small ones cost \$14.00. a)If the total cost of the order was \$7,320 for 450 pieces, how many of each size were ordered? b)What was the dollar amount of each size ordered? This is what I know: x=Large animals at a cost of \$20.00/piece y=Small animals at a cost of \$14.00/piece 450 pieces were ordered \$7320 is the total cost of order so I think my equation should read: 20x+14y/450=\$7320 Is this right? If so can you please help me with the solution. Thank you so much for you help! Click here to see answer by jim_thompson5910(28595)

 Question 74684: Evaluate each expression for the given values of the variables. Please show how you solved the problem. a) 3x-5 when x=2 b) -x + 1 when x= -3 c) 4x2 when x = -1 Click here to see answer by checkley75(3666)

 Question 74734: Solve V = 1/3Bh for B if V=112 and h=7 I able to set up the problem, but am getting confused on how to muplity the fraction with the variable. Thanks!! Click here to see answer by jim_thompson5910(28595)

 Question 74723: Not in book. The length of a rectangle is the sume of two whole numbers. The wideth of the rectangle is the difference of the same two whole numbers. Using the facts, write a verbal expression for the area of the rectangle. I got 2l^2-2b^2+4l+4b Does this look right? Thanks Click here to see answer by jim_thompson5910(28595)
 Question 74723: Not in book. The length of a rectangle is the sume of two whole numbers. The wideth of the rectangle is the difference of the same two whole numbers. Using the facts, write a verbal expression for the area of the rectangle. I got 2l^2-2b^2+4l+4b Does this look right? Thanks Click here to see answer by checkley75(3666)