Questions on Algebra: Equations answered by real tutors!

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Algebra: Equations

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Question 22577: If y varies directly as x and y=8 when x=3 find y when x=5
Click here to see answer by stanbon(26259)

Question 22575: what is (20 x 12) x n = 20 x(12 x 11)
Click here to see answer by stanbon(26259)

Question 22504: square root(3x-4) + 5 = 9
Click here to see answer by stanbon(26259)

Question 22552: My fifth grader is starting on basic algebra. Here is what the directions say to do:
Insert two pairs of parentheses to make this equation true.
12+9 divide 3-4+8x1=17
Could you please help me understand how to work this problem so I can better help my child! Thank you. Teresa
Click here to see answer by queenofit(120)

Question 22640: hi i need a list of algebra signs and what they meen such as a squiggily equal sign thank you
Click here to see answer by stanbon(26259)

Question 22613: what is 3x-9=15+12
Click here to see answer by wuwei96815(245)

Question 22701: I do not understand how to solve this equation
d/0.4 = 2d + 1.24
Thank you for any help.
Click here to see answer by Earlsdon(4898)

Question 22707: I need to know how to solve for x when the question is like 14,583=5.77x-8.4
I would really appriciate your help. I am in desperet need.
thanks
Click here to see answer by pridgea(6)

Question 22690: Solve for x;
1/12 + 1/x = 1/5
Also, another problem, again solve for x
16/x-3 - 24/x+4 + 13
thank you
Click here to see answer by mahan6221(2)

Question 22732: sorry i typed the first question wrongly
it's
x^2 - 1
---------- = 0
x + 1
please solve thanks for your help
Click here to see answer by longjonsilver(2297)

Question 22728: please factor the following
using the foil method so i am able to do the rest of the problems on my own
thanks so much for your help.
b^2 + 7b - 8 =

Click here to see answer by longjonsilver(2297)

Question 22753: I need help with solving for y:
5(4x+3) <= -1/2y + 5

I got:
20x + 15 <= -1/2y +5
20x + 10 <= -1/2y
I get confused when there are two variables and I have to solve for one.
Thanks
Click here to see answer by Earlsdon(4898)

Question 22752: Can you help with solving for x:
(2x + 3y)+ 3x = -3(y - 4x)
I get as far as this:
2x + 3y + 3x = -3y + 12x
-7x + -6y
I am lost from here.
Thanks

Click here to see answer by Earlsdon(4898)

Question 22805: Simplify:
(3x^0-4y^0+5z^0)^0
I really don't have any clue on how to do this since its a zero power.
Click here to see answer by queenofit(120)

Question 22666: 2(x+3)=4
3(x+2)=3
4)x+3)=4
12=3(2-y)
4(x+3)=8
3(x+5)=12
4(2x+8)=88
3(5a-3)=6
-3(x-5)=-21
-3(4-y)=-27
Click here to see answer by queenofit(120)

Question 22806: Please help me solve this equation:
Simplify:
(-4xy^3)^2 over (-2x^7y^0)^4
First I devided -4xy^3 into -2x^7 and got -2x^7 after that I'm not sure what to do.
Thanks !
Click here to see answer by Earlsdon(4898)

Question 22847: x^2-16
x^2-6x+8
these are two different Questions
x^2-10x+25
x-5
Click here to see answer by venugopalramana(3286)

Question 22612: what is 3x-9=15+12
Click here to see answer by elima(1433)

Question 22844: Hello, My name is Lavalle.
I need help on a couple of problems that have been stressing me out. I hope you can help me better understand them.
1. How many 0.0125 grain doses can be made from 3/8 grains of a drug?

2. A formula for 1000 tablets contains 11.5 grams of an antihistamine. How many grams of the antihistamine should be used to prepare 475 tablets?

3. If a syringe contains 28 mg of drug in 3 ml how many milligrams of the drug would a patient receive if 1.2 ml is administered?

PLEASE HELP IF YOU CAN.
Click here to see answer by stanbon(26259)

Question 22846: 2x^2-2
4x^2-4
Click here to see answer by wuwei96815(245)

Question 22878: Please help me with this
An inlet pipe can fill a pool in 10 hours, while the drain can empty it in 12 hours if the pool is empty and both the intel pipe and the drain are open, how long will it take to fill the pool?
Click here to see answer by venugopalramana(3286)

Question 22938: 1/2n + 2 + 3/4n -2 help me please. There are absolute value signs around both sets of equations.
Click here to see answer by Alwayscheerful(414)

Question 22937: 1/2n + 2 + 3/4n -2 help me please. There are absolute value signs around both sets of equations
Click here to see answer by stanbon!(97)

Question 22943: 1/6|4x-8|=6x what's the first thing that I do?
Click here to see answer by rapaljer(3612)

Question 22887: Please Help me solve this equation:
factor each:
x^2-x-30
Thanks !
Click here to see answer by rapaljer(3612)

Question 22881: Please Help me solve this equation:
Factor Each:
X^2-8x+16
Thanks !
Click here to see answer by queenofit(120)

Question 22880: Please Help me solve this equation:
5x(3x-4y-2)
Thanks !
Click here to see answer by queenofit(120)

Question 22905: (p+3)/4=(p-1)/6
Click here to see answer by queenofit(120)

Question 22965: Hello, I'm Janice!
I ned some help with this one problem. I get so confused
1. How many milliequivalents of calcium are in a tablespoonful solution containing 250mg of calcium chloride (CaCl 2)? Atomic Weight of Ca++ = 40; Cl- =35.5)
Please Help
Click here to see answer by venugopalramana(3286)

Question 22967: Please Help Me Solve This Problem:
Multiply Each:
(4x+2)(3x-9)
Thank you for your time and help !
Click here to see answer by prabhjyot(164)

Question 22970: Please Help Me Solve This Problem:
Simplify Each:
-6y^0
Thank you for your time and help !
Click here to see answer by stanbon!(97)

Question 22969: Please Help Me Solve This Problem:
Simplify Each:
y^-7
Thank you for your time and help !
Click here to see answer by rapaljer(3612)

Question 22949: Solve
3h+9/3h-1=5
Click here to see answer by ks(2)

Question 22977: I need help with this problem can someone please help me.
1. How many milliequivalents of calcium are in a tablespoonful of a solution containing 250 mg of calcium chloride (CaCl2)? (AW of Ca++ = 40; Cl- = 35.5)
Click here to see answer by venugopalramana(3286)

Question 22968: Please Help Me Solve This Problem:
Multiply:
(x-4)^3
Thank you for your time and help !
Click here to see answer by deepikabansal(5)

Question 23040: if i give u a problem can u show me how to do it

Click here to see answer by rapaljer(3612)

Question 23043: Please help me solve this problem:
(x+y)+(y-z)
Click here to see answer by NaiXLG(18)

Question 22882: Please Help me solve this equation:
Factor out the GCF:
20xyz+10xz-20yz
Thanks !
Click here to see answer by NaiXLG(18)

Question 22886: Please Help me solve this equation:
simplify each:
y^-7
Thanks !
Click here to see answer by Earlsdon(4898)

Question 22903: (y-8)/2=(y+10)/5
Click here to see answer by mmm4444bot(95)

Question 22992: How do you use all the steps to solve eqations by adding or subtraction?
Click here to see answer by rapaljer(3612)

Question 22904: ab/5-3=3b/10+9
Click here to see answer by rapaljer(3612)

Question 22902: (p+3)/2=(p-1)/6

Click here to see answer by rapaljer(3612)

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