# Questions on Algebra: Equations answered by real tutors!

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 Algebra: Equations Solvers Lessons Answers archive Quiz In Depth

 Question 395395: Solve the formula for the specified variable. Write the answer as an equation. NOTE: Maintain the case of the given variables. F=9/5C + 32 for C Click here to see answer by stanbon(57956)

 Question 395391: A principal of \$12,000 is invested in an account paying an annual interest rate of 10%. Find the amount in the account after 6 years if the account is compounded quarterly. (NOTE: Use a comma if the dollar number is more than 4 digits. Round to the nearest cent. Please help. Click here to see answer by ewatrrr(10682)

 Question 395454: Solve 2(4x + 3) = 10(x + 1) Click here to see answer by jim_thompson5910(28704)

 Question 395514: At what time(s) between 5 and 6 o'clock will the hour and the minute hands be at right angles? Click here to see answer by richard1234(5390)

 Question 395628: Two systems of equations are given below. For each system, choose the best description of its solution. If applicable, give the solution. -x+2y=8 x-2y=8 and x-2y=-4 -x+2y=4 Click here to see answer by ewatrrr(10682)

 Question 395668: if you dive down 9 feet underwater. then you come up 3 feet. where are you in relation to the water surface? Use addition and at least one negative number to solve this problem and show work. Click here to see answer by Earlsdon(6294)

 Question 395697: I need to find "x". 80 degrees / 360 degrees = 1000 km /x How do I isolate "x"? 80 * 80/360 to get rid of 80 to isolate 360 also 80 * 1000/x to get 80000 now I have 360=80000/x isolate "x" 80000*360=28800000 80000*80000/x = x 28800000=X Is this right? Click here to see answer by ewatrrr(10682)
 Question 395697: I need to find "x". 80 degrees / 360 degrees = 1000 km /x How do I isolate "x"? 80 * 80/360 to get rid of 80 to isolate 360 also 80 * 1000/x to get 80000 now I have 360=80000/x isolate "x" 80000*360=28800000 80000*80000/x = x 28800000=X Is this right? Click here to see answer by ankor@dixie-net.com(15746)

 Question 395735: Solve. 4x^4-25x^2+36=0 If there is more than one solution, separate them with commas. Click here to see answer by ewatrrr(10682)

 Question 395807: You are varnishing the background for a rectangular mural. The base of the mural is 612 meters and the height of the mural is 5 meters. How many cans of varnish will you need if each can covers 10 square meters? NOTE: You cannot purchase partial cans of varnish. Please help Click here to see answer by ewatrrr(10682)

 Question 395860: find the two numbers whose sum is 29 and whose difference is 15. Click here to see answer by MathLover1(6808)

 Question 395854: What is a multi-step equation that equals 31? Click here to see answer by richard1234(5390)

 Question 396119: train A and B are traveling in the same direction on parallel tracks. Train A is traveling at 60 miles per hour and train B is traveling at 80 miles per hour. Train A passes a station at 6:10 P.M. If train B passes the same station at 6:25 P.M., at what time will train B catch up to train A? Click here to see answer by Alan3354(31510)

 Question 396095: find all real solutions, if any, of 4(x+5)^2 = 8 Click here to see answer by nerdybill(7003)

 Question 396134: Factories y to the power 2 + 8y Click here to see answer by Alan3354(31510)

 Question 396179: Given two points on the line, input the equation of the line in standard form Ax + By = C. Reduce all fractional answers to lowest terms. (7, -3), (4, -8) I keep getting stuck on this one... The first step would be to find the slope ( y2-y1/ x2-x1) right? Click here to see answer by ewatrrr(10682)

 Question 396369: You typed a 600 word essay in 12 minutes. Let w be the number of words you can type in one minute Can w be 60? Click here to see answer by rfer(12727)

 Question 396373: Write an equation. Is the given value a solution? A truck driver drove 468 miles on Tuesday. That was 132 miles farther than she drove on Monday. Let d represen the distance she drove on Monday.. Did she drive 600 miles on Monday? Click here to see answer by rfer(12727)

 Question 396442: What is the solution to y ≥ | x - 4 | +3 ? Click here to see answer by richard1234(5390)

 Question 396288: is this correct a-10=16 is a 6 10+10=20+6=26 26-10= 16 10+a=16 16=16 is a 10 16 or 6 Click here to see answer by richard1234(5390)

 Question 396626: Five different bands have been selected to march in a parade. One band has been chosen to lead the parade. In how many different orders can the remaining four bands be placed in the parade? Click here to see answer by ewatrrr(10682)

 Question 396629: In triangle BAC where angle A is > 90* and side BA = 6 and side AC = 8, What is one possible length of side BC? Click here to see answer by ewatrrr(10682)

 Question 396545: 9-(-5) im pretty sure its 14 but i jus want to make sure because i did key change opposite which means it turned into 9+5 which equals 14 positive Click here to see answer by ankor@dixie-net.com(15746)

 Question 396699: How do you solve x+a=yb My math says solve for y? Click here to see answer by MathLover1(6808)

 Question 396720: I have no idea what I am supposed to do on this problem. I have never seen one quite like this and need some help getting startied on it. I may be able to do it once someone has started me on it but I do not know. Everything I have in parentheses is in them on my paper. (6x-5)^3(14)(2x+9)^13(2)+(2x+9)^14(3)(6x-5)^2(6) Not sure exactly what to do but it wants you to factor and simplify. Where do I start? Click here to see answer by josmiceli(9817)

 Question 396768: what is the algebraic expression for the sum of a and 9 Click here to see answer by ewatrrr(10682)

 Question 396799: A student scored 71, 83, and 96 on three algebra tests. What must he score on the fourth test in order to have an average of at least 85? Click here to see answer by stanbon(57956)
 Question 396799: A student scored 71, 83, and 96 on three algebra tests. What must he score on the fourth test in order to have an average of at least 85? Click here to see answer by solver91311(17075)

 Question 396806: 3z + 7 > 2z + 3 Solve and write in interval notation Thanks Click here to see answer by ewatrrr(10682)