Questions on Algebra: Equations answered by real tutors!

Tutors Answer Your Questions about Equations (FREE)

Question 30151: Please help me with these:
1.7*10^-13
and
5*10^10
Click here to see answer by Nate(3500)

Question 30597: Here is the problem:
A=1/2h(m+n) solve for n
The answer is n = 2A/h
Please show me how you get there. I have tried a number of times but I dont see how they got rid of the m.
thanks

Click here to see answer by Earlsdon(6291)

Question 29956: May you please help me with this problem, I am trying to find the value of "y" for the given value of "x" in each of the following equations. Then write the ordered pairs.
x+y=10
x-y=8
Click here to see answer by AlgebraGirl08(3)

Question 30816: A collection of jewelry includes two rings, one is 18 years old and the other 46 years old. In how many years will the older ring be twice as old as the newer ring?
Click here to see answer by bmauger(101)

Question 30823: 2a-4a=1
What does a equal
-y+6-5y=18
What does y equal
6-z-4z=-4
What does z equal
5(y-6)=-60
What does y equal
-4(x-3)-6x=10
What does x equal
2(z-4)-z=8
What does z equal
-4(n+3)+2n=6
Click here to see answer by Nate(3500)

Question 30849: 13 plus 8 time 4
Click here to see answer by acerX(62)

Question 30850: 13 added by 8 multplied by
4
Click here to see answer by Nate(3500)

Question 30862: write an equation that represents the data in the table.
x|1|2|3|4|5
y|3|2|1|0|-1
Click here to see answer by Nate(3500)

Question 30872: write an equation that represents the data in the table.
x|0|-2|-4|-6|-8
y|-4|-10|-16|-22|-28
Click here to see answer by longjonsilver(2297)

Question 30874: write an equation that represents the data in the table.
x|-2|0|2|4|6
y|9|5|1|-3|-7
Click here to see answer by longjonsilver(2297)

Question 30916: how do you do eqautions with variables on both sides
Click here to see answer by acerX(62)

Question 30921: can someone please help me, lindsey has $6.25 in nickels and pennies for a total of 100 coins. How many of each? Please help me; thank you.
Rudy
Click here to see answer by Nate(3500)

Question 27948: the perimater of a rectangle is 56 cm. the lenth of the rectangle is 2 cm more than the width find the dimensions of the rectangle
Click here to see answer by blubunny01(20)

Question 31019: 4x+3=-13
Click here to see answer by acerX(62)

Question 31081: I've been working on this problem for a while and can't figure out what the equation would be.
Wendy bought a drill at a 10%-off sale. The sale price was $75.60. Find the original price p.
Click here to see answer by aussie7us(3)

Question 31094: The cost to the customer was $128.25
The part was marked up 78.28%.
How much did the original part cost?
I keep wanting to try 128.25=.7828x
That's not making sense to me.
Click here to see answer by ikdeep(226)

Question 31107: Please help me to find the equation of the line through the points:
(4,1) and (6,-3). Thank you so very much!
Click here to see answer by Cintchr(481)

Question 31109: Find the equation of the circle with center at the point (2,-3) and radius r=4.
Click here to see answer by venugopalramana(3286)

Question 31111: I am a 52 year old mother trying to remember how to work this problem and failed to help my LD 12 year old.
Problem 1: (5x-7y) + (16x + 8y) Problem 2: (7n + 2t) + (4n - 3t)
I would appreciate any help to at least get started, it's been 2 long.
Click here to see answer by Cintchr(481)

Question 31110: Find the domain of the function f(x)=x-2/x^2-x-20. How do I even begin to do this problem?
Click here to see answer by venugopalramana(3286)

Question 31108: Find the equation of the line through the point (-2,5) and the perpendendular to the line 3x+y=4. How do I do this problem?
Click here to see answer by venugopalramana(3286)

Question 31100: I need help solving this equation.Solve P+rt=bt+2 for t
Click here to see answer by longjonsilver(2297)

Question 21527: -5+2c=6c+11
Click here to see answer by mukhopadhyay(490)

Question 21313: Solve: 7/y - 1/3 = 1/4

Click here to see answer by mukhopadhyay(490)

Question 31196: 2x = 10x + 7 - 4x
Click here to see answer by swctaker(2)

Question 31254: I have been searching throught some sights and cannot find an example for these 2 equations.
Can you help me solve?
Fraction problem:
#1. x/16 + 5/8 = 1
#2. 20/x -6/7 = 2

Click here to see answer by troyapplehelen(46)

Question 31247: A person has $15.00 to play games and loses $.50 each game. How much money is left after 7 games?
What is the x intercept?
What does the x intercept represent?

Click here to see answer by troyapplehelen(46)

Question 31242: 12x + 2y - 7 = 15 - 24y (solve for x)
Click here to see answer by troyapplehelen(46)

Question 31270: The height of a triangle is 4m more than twice the length of the base. the area is 35m2. I know that A=1/2BH, but I just can't put it into an equation to work it.
Click here to see answer by troyapplehelen(46)

Question 31289: I'm not really sure how this would be classified...It isn't in my book, it's from a take home study sheet.
Find three consecutive integers such that the sum of the three is 61 more than the largest.....
Thank you very much for any help you can offer.
cory
Click here to see answer by mukhopadhyay(490)

Question 31290: 8x-(3x-2)=6(x+2)
Click here to see answer by mukhopadhyay(490)

Question 31288: x+3=9
Click here to see answer by mukhopadhyay(490)

Question 31330: Can you please help me solve, f+(-8)=14, this is not from a text book, its
from a worksheet
Click here to see answer by Nate(3500)

Question 31356: 0.5b+3.4 = 0.2b+12.4
Click here to see answer by blubunny01(20)

Question 30063: when solving a system of two linear equations, how is an inconsistent system identified?
Click here to see answer by stanbon(57424)

Question 31135: rational equation
5/3x-4 = -3/1-2x
Click here to see answer by Fermat(127)

Question 31484: Hi can anybody please answer my questions am sure someone can do it in like 10 secs I just want to learn how u do it step by step
1. 4x + 5 -3(2x - 5) = 9 - (8x - 1) + x
2. 1 - (t - 1)= 2t
3. 3x + 2 (x + 2) = 13 - (2x - 5)
Thank You...............
Click here to see answer by blubunny01(20)

Question 31442: I need help on this one please!
for the function y=x2 - 4x - 5, perform the fowolling tasks:
put the function in the form y=(x - h)2+k
help me brake it down to figure it out thank you.
Click here to see answer by mukhopadhyay(490)

Question 31525: What is the answer to 4b = 32?
Click here to see answer by benni1013(197)

Question 31527: Got past one section got it fliped the page and lost again. Plz Help!
1. 2/5 x + 4/5 x = 36
2. 3a/4 + 2 = 17
3. 1 + x/3 + 2 - x/3
Click here to see answer by checkley71(8403)

Question 31521: Not understanding this 1
1. 4x + 5 - 3(2x - 5) = 9 - (8x - 1) + x
Click here to see answer by InYourEyes(5)

Question 31583: solve the expression for x; (4-2)(x-2)=4x-8? can you help.thank you .
Click here to see answer by checkley71(8403)

Question 31590: The formula for the permimeter of a rectangle is
P=21+2W solve for W
Click here to see answer by Cintchr(481)

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