Questions on Algebra: Equations answered by real tutors!

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 Algebra: Equations Solvers Lessons Answers archive Quiz In Depth

 Question 79899: need help with the addition method x-2y= -24 you have to subsitute the numbers in the equation. Thanks! -6x-3y=9 Click here to see answer by checkley75(3666)

 Question 80475: Driving down a mountain,Tom finds that he has descended 1800 ft in elevation by the time he is 3.25 mi horizontally away from the top of the mountain. Find the slope of his descent to the nearest hundredth. Click here to see answer by ankor@dixie-net.com(15657)

 Question 80468: not in book. Use the formula h=-16t^2+250t to model the height h in feet of a model rocket t seconds after it is launched.Determine when the rocket will reach a height of 900 feet. Help please. Click here to see answer by ankor@dixie-net.com(15657)

 Question 80584: 15: Solve the following equations. 12m2 + 7m = -1 Click here to see answer by tutorcecilia(2152)

 Question 80649: a running cheetah completed one stride(23feet) in 0.28 seconds. using the formula distance=ratextime find the cheetahs speed per feet per second Click here to see answer by stanbon(57377)

 Question 80661: How do I rewrite the equation y = 3x + 1 as a function of x? Click here to see answer by rapaljer(4667)

 Question 80663: Solve the system by addition. 2x + 4y = 3 4x - 2y = 1 Click here to see answer by praseenakos@yahoo.com(507)

 Question 80706: which of the ordered pairs are solutions for the equation x-y=4? (3,1), (0,-4), (-4,0), (-3-7) with instructions on what was done to get the answer Click here to see answer by nidhi_mundra_5(2)

 Question 80722: An employee who produces x unites per hour earns an hourly wage of y=0.85 + 10 (in dollars). Find the hourly wage for an employee who produces 18 unites per hour. A. \$25.30 b. \$25.80 c. \$25.00 d. \$25.70 Click here to see answer by stanbon(57377)

 Question 80718: I am sorry guys some of the question was left out. Which of the pairs are solutions for the equation x-y=4 (a) (0,4), (-4,0), and (-3-7) (b) (-4,0), and (-3,-7) (c) (0, -4) and (-3-7) (d) (3, 1) and (-4, 0) with instructions of what was done to get the answer, thank you I am sorry for the first one Click here to see answer by jim_thompson5910(28595)

 Question 80744: 42: The difference between the square of one even number and the square of the next smaller even number is 52. What is the larger number? Click here to see answer by dolly(163)
 Question 80744: 42: The difference between the square of one even number and the square of the next smaller even number is 52. What is the larger number? Click here to see answer by stanbon(57377)

 Question 80743: Which of the following is the solution set of |3x+ 18|=12 A. (2) B. (2,10) C.(-10, -2) D.(10) Click here to see answer by bucky(2189)

 Question 80768: Which of the following is the solution set of |2x - 3|>4? A.{x|x<-1/2 or x >7/2} B. {x|x<-1 or x >7} c. {x|-1/2< x<7/2} D. {x|x<1/2 or x>7/2} Click here to see answer by stanbon(57377)

 Question 80742: 37: x^2 + 5x + 9 = 0 Click here to see answer by checkley75(3666)

 Question 80585: 16: 8(c3 - c) = c (6c + 1) Click here to see answer by checkley75(3666)

 Question 80940: the sum of two numbers is eighteen. the total of three times the smaller and twice the larger is forty-four. find the two numbers Click here to see answer by checkley75(3666)

 Question 81004: write the equation of the line passing through each of the given pairs of points. Write your result in slope-intercept form, where possible (-1,3 and (4, -2) Click here to see answer by checkley75(3666)

 Question 81104: If one-half a number is subtracted from five-sixths of the number, the difference is 6. Find the number. (5/6x-1/2x=6) Click here to see answer by jsteppergurl(2)

 Question 81103: Solve the system by addition. 5x – 3y = 13 4x – 3y = 11 Click here to see answer by jsteppergurl(2)

 Question 81107: Simplify by combining like terms. x√18 - 3√8x^2 Click here to see answer by stanbon(57377)

 Question 81211: write the equation of the line passing through each of the given pairs of points. write result in slope-intercept form, where possible. Click here to see answer by Edwin McCravy(8909)

 Question 81221: write the equation of the line passing through each of the given points with the indicated slope. Give your results in slope-intercept form, where possible. (2,-3)and (2,4) Click here to see answer by Edwin McCravy(8909)

 Question 81245: can someone check this for me? I have to factor completely. x^2+9x+18 18+9x+x^2=0 (6+x)(3+x)=0 6+x=0 6+-6+x=0+-6 0+x=0+-6 x=0+-6 x=-6 Click here to see answer by jim_thompson5910(28595)

 Question 81290: Solve. 9x – 0.34 = 8(x – 0.12) I got –0.28 Is it right? Click here to see answer by stanbon(57377)

 Question 81284: Solve for b. a = 1/2 bc^2 This is really strange and I am not sure what to do? Where are all the numbers? Click here to see answer by stanbon(57377)

 Question 81234: A stamp collection consisits of 5, 13,and 18 cent stamps. The number of 13 cent stamps is one less than twice the number of 5 cent stamps. The number of 18 cent stamps is five more than the number of 13 cent stamps. The total value of all the stamps is \$2.60. Find the number of 13 cent stamps in the collection. Click here to see answer by ankor@dixie-net.com(15657)

 Question 81299: Solve. 3x – 7 = 2x + 8 my answer is x = 15 Is this correct? Click here to see answer by stanbon(57377)

 Question 81294: Which label describes the following? 7x^2 – 3 = 0 Expression Linear equation Equation which is not linear Click here to see answer by Edwin McCravy(8909)

 Question 81295: Solve. 6x + 4(3x – 2) = 6x + 2 Click here to see answer by checkley75(3666)

 Question 81281: Solve for x. 3x – 2y = 6 I came up with 2/3y+6. Did I get it? Click here to see answer by praseenakos@yahoo.com(507)

 Question 81329: 1/f = 1/p + 1/q. Solve for p. Click here to see answer by funmath(2925)