Algebra ->  Algebra  -> Quadratic Equations and Parabolas -> Questions on Algebra: Quadratic Equation answered by real tutors!      Log On

 Ad: You enter your algebra equation or inequality - Algebrator solves it step-by-step while providing clear explanations. Free on-line demo . Ad: Algebra Solved!™: algebra software solves algebra homework problems with step-by-step help! Ad: Algebrator™ solves your algebra problems and provides step-by-step explanations!

 Question 587675: How to solve this!x= -1 2x-4x-2 how do you solve it Click here to see answer by Alan3354(30983)

 Question 587871: How do I solve this equation 5x^2+3x-2=0 I need to see the steps as I am struggling to understand how to solve this using the quadratic formula Click here to see answer by mananth(12270)

 Question 587861: A Broadway theater has 400 seats, divided into orchestra, main and balcony seating. Orchestra seats sell for \$80, main seats for \$60 and balcony seats for \$40. If all the seats are sold, the gross revenue to the theater is \$23,200. If all the main seats and the balcony seats are sold, but only half the orchestra seats are sold, the gross revenue is \$20,000. How many are there of each seat? I've tried solving this by writing an equation and trying to solve for x but it didn't get me the correct answer, any help would be appreciated. Thank you. Click here to see answer by mananth(12270)
 Question 587861: A Broadway theater has 400 seats, divided into orchestra, main and balcony seating. Orchestra seats sell for \$80, main seats for \$60 and balcony seats for \$40. If all the seats are sold, the gross revenue to the theater is \$23,200. If all the main seats and the balcony seats are sold, but only half the orchestra seats are sold, the gross revenue is \$20,000. How many are there of each seat? I've tried solving this by writing an equation and trying to solve for x but it didn't get me the correct answer, any help would be appreciated. Thank you. Click here to see answer by yogendra singh(2)

 Question 587907: A new excavation site that fits a parabola with the equation y =x squared +11x+10. The hole must be more than 10m wide across the top for a bobcat to be able to dig it. If the ground level is taken as the x= axis,is the hole able to be dug by the bobcat? Click here to see answer by josmiceli(9661)

 Question 587957: Find the two numbers whose product is 3 and the larger number is 10 more than the smaller number. Click here to see answer by Alan3354(30983)

 Question 588325: Please help ASAP with my algebra question. We are on quadratic equations and I am stuck on a word problem: The area of a square can be doubled by increasing the length by 6 inches and the width by 4 inches. What is the length of the side of the square? Click here to see answer by dfrazzetto(277)

 Question 588428: The primeter of a rectangle is 30 cm, Find the whole-number dimensions of the rectangle with: (a) the greatest area (b) the least area Click here to see answer by solver91311(16872)
 Question 588428: The primeter of a rectangle is 30 cm, Find the whole-number dimensions of the rectangle with: (a) the greatest area (b) the least area Click here to see answer by josmiceli(9661)

 Question 588637: An object is propelled straight down with an initial velocity of 60 feet per second, from a height of 6,000 feet. How high is the object after 15 seconds? Click here to see answer by Alan3354(30983)

 Question 589204: x 3 8 - + - = - 100 100 100 It says to multiply both sides and i dont get what its asking, because i think is already multiplied all the way. Click here to see answer by baseballkid35(2)

 Question 590122: Suppose you are solving a quadtratic equation with no constant term (c = 0). Would you use factoring or the quadratic formula to solve? Why? Click here to see answer by ankor@dixie-net.com(15639)

 Question 590129: Explai a sequence of steps that can be used to solve any quadratic equation in the quickest way. Click here to see answer by stanbon(57250)

 Question 590144: I need help on how to solve quadratic equations using square roots. I have two problems I need help with: 1.) (2x+1)^2=25 Click here to see answer by Alan3354(30983)
 Question 590144: I need help on how to solve quadratic equations using square roots. I have two problems I need help with: 1.) (2x+1)^2=25 Click here to see answer by richwmiller(9135)

 Question 590340: Solve the equation by completing the square: 3x2 - 24x = 27. Enter the largest value of the coordinates. Use a number only. This is a question from my math homework. I made it to 3(x^2-24x)-27, but now I'm stuck... Please help! Click here to see answer by Alan3354(30983)

 Question 590830: the length of a floor is 7 feet longer than the width. If x represents the width of the living room, what equation represents the area, y, of the floor in square feet? Click here to see answer by nerdybill(6951)

 Question 591156: Please show me how to set up an equation for 4x -y = 9 x= 2. I'm not sure how to start this: Am I multiplying or subtracting? What are the steps? 4(2)-y=9 Click here to see answer by rfer(12652)

 Question 591352: I do not understand quadratics...It's so frustrating! I am failing algebra 2 and this CANNOT happen!!! I understand how to set it all up with the equation and the formula (a,b,c) and I can solve it up to the last part when you have to simplify it. I cant simplify it. So as an example: as an answer I got and I simplified that to please help me! I have a test coming up and my teacher is certainly not the most understanding guy. Thanks again for considering my problem :) Click here to see answer by scott8148(6628)
 Question 591352: I do not understand quadratics...It's so frustrating! I am failing algebra 2 and this CANNOT happen!!! I understand how to set it all up with the equation and the formula (a,b,c) and I can solve it up to the last part when you have to simplify it. I cant simplify it. So as an example: as an answer I got and I simplified that to please help me! I have a test coming up and my teacher is certainly not the most understanding guy. Thanks again for considering my problem :) Click here to see answer by jim_thompson5910(28504)

 Question 591991: how do i factor the trinomial -x^2 - 11X + 180 Click here to see answer by josmiceli(9661)

 Question 592142: Approximate to three decimal places. (a) sin 77°40' Click here to see answer by Alan3354(30983)

 Question 592356: what is the x coordinate of the vortex when y=-2x^+16x-30 Click here to see answer by solver91311(16872)

 Question 592564: Identify the vertex, axis of symmetry, and direction of opening for y=-8(x+2)^2. Click here to see answer by stanbon(57250)