Questions on Algebra: Equations answered by real tutors!

Tutors Answer Your Questions about Equations (FREE)

Question 101532: write an equation of the line passing through (-3,8) (5,4)
Click here to see answer by jim_thompson5910(28536)

Question 101557: I have the solutions to this problem from the back of my book. I just don't know how to get the answer. This problem is also listed on my testguide, for a test I'm taking tonight. Please help!!
(x^2-x)^2 - 14x(x^2-x) + 24 = 0
I've tried everything I can think of. I know it's not a quadratic equation. I've tried factoring...but in the end I end up with 5 terms, but like I said I'm not even sure if what I did up to that point is right.
I squared what is in the 1st set of parentheses first then performed the multiplication of the next set of parentheses, then combined like terms. Beyond that I just don't know what to do.
Click here to see answer by edjones(7569)

Question 101531: the graph of the function y=1/2x-3 is shown below.
if the line is translated 2 units down, which equation will best describe the new line
Click here to see answer by edjones(7569)

Question 101566: 1/4x+2/3=x+3/4 Please Help!!
Click here to see answer by edjones(7569)

Question 101566: 1/4x+2/3=x+3/4 Please Help!!
Click here to see answer by MathLover1(6625)

Question 101569: find the value of x in the equation 9(2x-18)=36.

Click here to see answer by MathLover1(6625)

Question 101714: -10x-5+2(-5+2x)=11
Click here to see answer by stanbon(57290)

Question 96438: Sam must have an average of 70 or more in his summer course to obtain a grade of C. His first three test grades were 75, 63, and 68. Write an inequality representing the score that Sam must get on the last test to get a C grade.
Click here to see answer by jenna1026(3)

Question 101789: I have done this problem over and over and I can't figure it out.
The sum of three times a first number and twice a second number is 43. If the second number is subtracted from twice the first number, the result is -4. Find the numbers. Can you please help me.
Click here to see answer by Fombitz(13828)

Question 101792: I can't seem to figure this one out. Can you please help me.
You are choosing between two long-distance telephone plans. Plan A has a monthly fee of $15 with a charge of $.08 per minute for all long-distance calls. Plan B has a monthly fee of $3 with a charge of $.12 per minute for all long distance calls.
a. For how many minutes of long-distance calls will the costs for the two plans be the same? What will be the cost for each plan?
b. If you make approximately 15 long-distance calls per month, each averaging 30 minutes, which plan should you select? Explain your answer.
Click here to see answer by stanbon(57290)

Question 101788: Assume that y varies directly as x. Find y when x=54 if y=1/4 when x=3/2
Click here to see answer by MathLover1(6625)

Question 101788: Assume that y varies directly as x. Find y when x=54 if y=1/4 when x=3/2
Click here to see answer by stanbon(57290)

Question 101803: I have tried to solve this problem and I haven't been able to figure it out. Can you please help me with this one?
Steve purchased tickets to an air show for 7 adults and 2 children. The total cost was $172. The cost of a child's ticket was $4 less than the cost of an adult's ticket. Find the price of an adult's ticket and a child's ticket.
Click here to see answer by Earlsdon(6287)

Question 101787: Find h(4)given that h(x)=x/2-7
Click here to see answer by MathLover1(6625)

Question 101880: 3(a+2)=24
Click here to see answer by edjones(7569)

Question 101888: -12=6+2/3y
-12-6=6-6+2/3y
-18=2/3y
(2/3)-18=(2/3)2/3y
-12=y
Is this correct?
Click here to see answer by edjones(7569)

Question 101915: -3(9+2b)=33
Click here to see answer by checkley75(3666)

Question 101914: -3(9+2b)=33
Click here to see answer by checkley75(3666)

Question 101939: It costs $225 per month plus 2 cents per copy to rent a copy machine. A law firm needs to lease a copy machine for use during a 3 month period. If they allot a budget of $1100, how many copies can they make?
Click here to see answer by checkley75(3666)

Question 101938: The perimeter of a rectangle is 74 ft. The length is 7 ft more than twice the width. What are the dimensions of the rectangle?
Click here to see answer by brianuh(2)

Question 101942: Leon left a 15% tip for a meal. the total cost of the meal including the tip was $41.40. What was the cost the meal before the tip was added?
Click here to see answer by checkley75(3666)

Question 101940: the landers want to sell their house. If they want to be left with $117500 after paying 6% of the selling price to a realtor as a commission, for how much must they sell the house?
Click here to see answer by checkley75(3666)

Question 102038: solve for linear equations
3-4(x+5)+1=2(x-5)+9
Click here to see answer by jim_thompson5910(28536)

Question 102129: -3+8-(-12)=
Click here to see answer by checkley75(3666)

Question 102135: 9(x+3)=4x-3 How do I get the only one"x" on only one side of the equation?
Click here to see answer by checkley75(3666)

Question 102112: Assume that y varies inversely as x, and y=18 when x=3. Find the constant of variation.
Please help!
Click here to see answer by goaliejustintaylor6(1)

Question 102138: how do i solve 4(2x - 3) + 2 = 2(4x - 5)
Click here to see answer by checkley75(3666)

Question 102088: i am trying my hardest to find somewhere online to where i can find STEP by STEP instructions on how to solve algebra equations, i am going into the military and i would like to improve my math score on the ASVAB, so is there any site that does this?
Click here to see answer by elima(1433)

Question 102180: Find the standard form of the equation of the perpendicular bisector of the line defined by the points (-2,5) and (6,-1).
Click here to see answer by checkley75(3666)

Question 102217: i am
an 8 grader who is trying very hard with my work i really do need your help
2.1x+45.2=3.2-8.4x can you please work this problem out for me and explain
in words what you did to get the answer
i have 9 more problems just like this
Click here to see answer by mathemanic(13)

Question 102241: Hello good evening,
Could you please assist me with the following question...I know it might be simple, however I haven't done grade 11 math in years, now that my son is in it kind of feel dumb. I have no text book as this question he got wrong in a quiz.
(3x^3y^4)^5 (so this is 3x to the power of 3, y to the power of 4 all in brackets to the power of 5.
Hope this makes sense.
Have a fabulous night and thanks again!!
Click here to see answer by stanbon(57290)

Question 102243: 1.03-0.62x=0.71-0.22x
&
1.7t+8-1.62t=0.4t-0.32+8
&
0.7n-15+n=2n-8-0.4n I DO NOT KNOW HOW TO SOLVE THESE PROBLEMS I NEED HELP ALL 3 PROBLEMS
Click here to see answer by stanbon(57290)

Question 102278: (x/(4x-4)+(5/(x^2-1)=1/4 i keep coming up blank on this one for some reason thanks a lot for the help
Click here to see answer by stanbon(57290)

Question 102249: The winner of the track meet had an average speed of 5 meters per second. the second plae runner had an average speed of 4.5 meters per second. if the winner finished 2.2 seconds ahead of the second place runner, how long did it take the winner to cross the finish line?
Click here to see answer by edjones(7569)

Question 102292: 8x+1+4x=3
my answer:
8x+4x=1+3
12x = 4 *(12x over 4/4 over 4)
__ ___
4 4 x=3 (answer)
Click here to see answer by jim_thompson5910(28536)

Question 102293: 2h/5-1/5=3h/5+4/5-2h/5 plesae help!
Click here to see answer by jim_thompson5910(28536)

Question 102293: 2h/5-1/5=3h/5+4/5-2h/5 plesae help!
Click here to see answer by edjones(7569)

Question 102186: If {c,d} is the solution set of x^2-7=6x evaluate the following: c^3+c^2d+cd^2+d^3
Click here to see answer by edjones(7569)

Question 101684: Please help me solve this problem by clearing the equation of all fractions.
5/3 + 2/3x = 25/12 + 5/4x + 3/4
I have tried this:
Found the LCD, then mulitplied the LCD by every fraction in the equation. Next I added the terms that needed to be added on the sides, after that I used the addition property. Then I divided each side by 12x.

Click here to see answer by edjones(7569)

Question 102240: 2x to the second power- 28
a squared+25-10a
2x squared-11x+12
x cubed+24x squared+144x

Click here to see answer by elima(1433)

Question 102361: I am not sure how to answer this homework problem. It is an online math class, I am not sure of its origins.
-2x+4>12
Click here to see answer by checkley75(3666)

Question 102366: how do you found the areaof the circle?
Click here to see answer by checkley75(3666)

Question 102378: v+14+v=25+v+14
what is v?
Click here to see answer by jim_thompson5910(28536)

Question 102354: The sum of four consecutive even integers is 308. Write and solve an equation
to find the four integers.
Click here to see answer by jim_thompson5910(28536)

Question 102464: I have to write 2 equations and solve them. I do not understand how to write an equation
Click here to see answer by doukungfoo(195)

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