Questions on Algebra: Equations answered by real tutors!

Tutors Answer Your Questions about Equations (FREE)

Question 60406: Jerry needs to raise his batting avg. So far he has 20 hits in 100 times at bat for .200 batting avg. How many consecutive hits does he need in order to raise his avg to at least .250? Solve. Write an equation
Click here to see answer by josmiceli(19441)

Question 60357: Factor Complete

a. h^2 -64
b. j^2 +10j + 25
Click here to see answer by tutorcecilia(2152)

Question 60437: Given f(x)=5x+7 and g(x)=x^2+7, find (g f)(x).
Click here to see answer by tutorcecilia(2152)

Question 60461: Please help me solve this equation: A/5=A-3/2
Click here to see answer by funmath(2933)

Question 60467: x=2200+.10x
Click here to see answer by uma(370)

Question 60353: 1. Factor by grouping:
a. 5r^2+15rs-2rs-6s^2

b. 10p^3-2p^2q^2-5pq+q^3
Click here to see answer by tutorcecilia(2152)

Question 60350: Find the Product:
a. (2x-3)(4x^2-6x+3)
b. t(t^2-2)^2
Click here to see answer by tutorcecilia(2152)

Question 60358: Solve:
a. k^2 -4k -32=0
b m^2-8m +12=0
Click here to see answer by tutorcecilia(2152)

Question 60511: From Beginning Algebra Huchison online edition from UOP Chapter 2 section 3 problem 54
6x-1/5 -2x/3 =3
I know I am supposed to get rid of the fractions by multiplying LCM times terms, but does that include the =3? With or without I am so very lost. Your great explanations would be greatly appreciated!
Thanks
Kelley
Click here to see answer by kayeith(17)

Question 60497: 3/5m + a = b, solve for m
here's what I have done so far:
3/5m +a-a = b-a
3/5m=b-a
I think I need to get rid of the 3/5 from each side? How do i do that?
Click here to see answer by kayeith(17)

Question 60548: 7-3=r-4(2+r)
Click here to see answer by funmath(2933)

Question 60567: Parantheses in equations:
I have tried now about 6 times working on these problems and I just can't get it all together. I get one part then mess up another, please HELP.
Problem #1
-(7D - 8) = -5(2B - 3) +1 I need to solve and do the check.
This is what I have done.
-(7D- 8) = -5(2D - 3) +1
-7D + 8 = -10D + 15 + 1
-7D + 8 = -10D + 16
+7D +7D
+8 = -3D + 16
-16 -16
-8 = -3D
D = -8 / -3
CHECK:
-(7D - 8) = -5(2D - 3) + 1
-(7 (-8 / -3) -8) = -5 (2 (-8 / -3) -3) +1
-(56 / -3 -8) = -5 (-16 / -3) -3) +1
Please help
Click here to see answer by venugopalramana(3286)

Question 60689: A=p+prt, for p
Our teacher was gone today and our sub. couldn't figure it out.
The answer was (I think): p=A/rt+1
We couldn't figure out how to get the +1.
If you can help thanks.
Click here to see answer by funmath(2933)

Question 60690: When you have a problem such as 3y-7y=28, how would you simplify the problem? Would it be -4y=28? Thanks
Click here to see answer by funmath(2933)

Question 60707: what are the x and y intercepts of the equation x/2 + y/3 = 1?
Click here to see answer by Nate(3500)

Question 60719: how do you solve a problem like this: 3m=(-84)
Click here to see answer by funmath(2933)

Question 60737: -2(3y-)=56
Help!!!
Click here to see answer by checkley71(8403)

Question 60730: I need to solve this equation in three variables 2x - y =2 3z = 21 4x + z =19
Click here to see answer by uma(370)

Question 60803: Hi, I am taking an online algebra class as part of my pre-nursing courses. I have been struggling with this equation for 2 days. I see other students responses and most of them are coming up with the answer of "79". I cannot figure out how they are coming to that conclusion, help! Thanks! :)
1 � a^(2) � (-b)^(3) + C^(4)
(a=-2, b=1, c=3)
Click here to see answer by checkley71(8403)

Question 60779: How do you write the equation?
The difference of 3 times a number and 5?
Click here to see answer by checkley71(8403)

Question 60909: Solve for n.
18.5 * (10-n)/n=18.5

I know n is 5 but I'm not sure how
Click here to see answer by joyofmath(189)

Question 61023: f(x)= x^-2x+8\x+4
Click here to see answer by funmath(2933)

Question 61041: 4-3x=16 is the answer 4
dont get this one -13(3x-11)+2=28

6-4(2-1/2x)+x=22
help me please
Click here to see answer by checkley71(8403)

Question 61099: Can somone help me solve this and show your work?
x/6 + 3 = 9
Click here to see answer by funmath(2933)

Question 61005: I need your help solving this problem:3x+y-1=49
Click here to see answer by tutorcecilia(2152)

Question 61140: (9x+2)+(4x-1)-(6x+3)+4(x-1)=12
confused with the previous problem and answer. New one. thanks so much
Click here to see answer by stanbon(75887)

Question 61140: (9x+2)+(4x-1)-(6x+3)+4(x-1)=12
confused with the previous problem and answer. New one. thanks so much
Click here to see answer by asha(30)

Question 61221: Could someone please explain how to work out this problem?
Write the equation of the line with slope -2 and passes through the point (-1,5)
Then write the equation in standard form.
Thanks
Click here to see answer by checkley71(8403)

Question 61250: 5/2 x + 3 =1/2 x +15
Click here to see answer by DJ_Sammie(24)

Question 61273: 4.2
# 8- The sum of three consecutive odd integers is 81. Find the integers.
Click here to see answer by checkley71(8403)

Question 61219: Could someone help me answer this problem?
Find the slope of the line that passes through the points (-3,5) and (0,-2)
Thanks to all!
Click here to see answer by checkley71(8403)

Question 61216: Could ssomeone please explain how to work this problem?
Find the slope and y intercept by writing the equation in slope intercept form then graph the equation. 3x+y=-2
Click here to see answer by checkley71(8403)

Question 61214: Can someone help me with this problem?
Find the x- and y- intercepts and graph the equation.
y=2x+6
Click here to see answer by checkley71(8403)

Question 61301: 4x - 9 = 3x + 2
Click here to see answer by checkley71(8403)

Question 61301: 4x - 9 = 3x + 2
Click here to see answer by joyofmath(189)

Question 61298: 6a + 3+ 2a = 11

Click here to see answer by checkley71(8403)

Question 61300: 3x - 6 = 4x -18
Click here to see answer by joyofmath(189)

Question 61288: 0.4p-3.2=4.8p+4.2-0.7p
solve for p
Click here to see answer by funmath(2933)

Question 61299: 4a + 7 = 2a = 19
Click here to see answer by funmath(2933)

Question 61231: How would u solve the equation 2a-6=-a??
Click here to see answer by funmath(2933)

Question 61217: Could I get help on working out this problem?
Find the slope and y intercept by writing the equation in slope intercept form then graph the equation.
-4x-3y=6
Click here to see answer by tutorcecilia(2152)

Question 61188: 73- -12+ -4n-6-n if n=7

Click here to see answer by tutorcecilia(2152)

Question 61253:
Click here to see answer by funmath(2933)

Question 61356: 2(x-3)=x+3
Click here to see answer by checkley71(8403)

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