# Questions on Algebra: Equations answered by real tutors!

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 Algebra: Equations Solvers Lessons Answers archive Quiz In Depth

 Question 550328: c + 7 over 4 = 6 over 7 c=???? Click here to see answer by jim_thompson5910(28504)

 Question 550326: Please help me find the standard form of the equation of the line that is perpendicular to y=7/2x-5 and contains (-3,-7) A.7x+2y=21 B.3x-7y=21 C.2x-7y=55 D.2x+7y=-55 Click here to see answer by stanbon(57246)

 Question 550324: Please help me find the slope-intercept form of the line passing through the point (9,-7) and parallel to the line 7x-9y=7 A.y=7/9x-14 B.y=-7/9x-14 C.y=7/9x+1/14 D.y=9/7x+1/14 Click here to see answer by stanbon(57246)

 Question 550331: what is the median of j(1,4) k(-3,-1)L(3,-4) Click here to see answer by Edwin McCravy(8882)

 Question 550223: out of four pipes when 1,2,3 pipes are opened tank filled in 12 minutes; when 2,3,4 pipes opened time taken is 15 minutes;when 1 and 4 are opened it taken 20 minutes. How much time will take when all the four pipes are opened? Click here to see answer by ankor@dixie-net.com(15638)

 Question 550495: In a paragraph, describe how to simplify each expression. And give answers. Thanks!!! *16 1/2 * √100 Click here to see answer by jim_thompson5910(28504)

 Question 550474: help solve g(t) = t-3/t^2 - 3t + 2 t= -2, t= 1 Click here to see answer by nyc_function(2733)

 Question 550544: find x+1/x if x-1/x= square root of 5 Click here to see answer by ptaylor(2048)
 Question 550544: find x+1/x if x-1/x= square root of 5 Click here to see answer by mathstutor494(95)

 Question 550583: Find the slope of the line containing the given pair of points. (9,-6) and ( 5,6) Got me stumped. Click here to see answer by mananth(12270)

 Question 550582: I need to find the x and y intercepts for the equation. 4x-3y=9 Then I have to graph it. Click here to see answer by mananth(12270)

 Question 550510: 2 2 2 35in x (2.54 cm) x (1m) -------- -------- 2 ------ 2 1 (1 in) (100 cm) Click here to see answer by Alan3354(30983)

 Question 550615: translate the following sentence into an equation. do not solve. twice the sum of a number and five is 52 Click here to see answer by richard1234(5390)

 Question 550610: calculating hang time. find the hangtime for a golfball hit 80 feet into the air? I have t + 80 so far Click here to see answer by richard1234(5390)

 Question 550665: I need to expand this quadratic equation: (3r+8)^2 I answered 3r^2-+2(8*3)+64 ,but it was counted wrong. Could anyone help me? Click here to see answer by jim_thompson5910(28504)
 Question 550665: I need to expand this quadratic equation: (3r+8)^2 I answered 3r^2-+2(8*3)+64 ,but it was counted wrong. Could anyone help me? Click here to see answer by josmiceli(9661)

 Question 550696: If y varies jointly with x cubed and the square root of z, find the constant of variation if y=12 when x=4 and z=49 Thanks in advance for all of your help Click here to see answer by stanbon(57246)

 Question 550739: Give the equation of the line that contains ( 2,  6), and (7,  6) Click here to see answer by jim_thompson5910(28504)

 Question 550741: Find the midpoint between points (17, 1) and (16, 18) Click here to see answer by jim_thompson5910(28504)

 Question 550748: What is the slope of a line perpendicular to the line 4x - 3y = 5? Click here to see answer by mananth(12270)

 Question 550746: Find the number of sides of a convex polygon if the measures of its interior angles have a sum of 6840° Click here to see answer by KMST(1868)

 Question 550749: A van travels 168 miles on 14 gallons of gas. How many gallons will it need to travel 192 miles? Click here to see answer by faceoff57(82)

 Question 550841: Solve the equation x^3+2x^2+x+2=0, if -2 is a root. Click here to see answer by Edwin McCravy(8882)

 Question 550742: Find the number of sides of a convex polygon if the measures of its interior angles have a sum of 6840° Click here to see answer by Alan3354(30983)

 Question 550737: A road runs southeast-northwest. A motor home heading northwest on the road makes a left turn onto a side street at an angle of 75.2°. Through what angle would a motor home heading southeast on the same road need to turn in order to enter that same side street? Click here to see answer by Alan3354(30983)

 Question 550895: help find the fourth term of the geometric sequence whose first term is 7 and whose common ration is 5 a, = Click here to see answer by mathstutor458(57)

 Question 550756: Find the slope of the line that contains b1,  9g and b1, 1g Click here to see answer by scott8148(6628)

 Question 550744: A road runs southeast-northwest. A motor home heading northwest on the road makes a left turn onto a side street at an angle of 75.2°. Through what angle would a motor home heading southeast on the same road need to turn in order to enter that same side street? Click here to see answer by KMST(1868)

 Question 550954: write the equation of the parabola in vertex form: vertex (3,3) that goes through the point (-2,53). Click here to see answer by Edwin McCravy(8882)