Questions on Algebra: Evaluation of expressions, parentheses answered by real tutors!

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Question 655947: By which property is the equation 1 • 0 • (-1) = 0 true?
A. Identify Property of Multiplication
B. Multiplication Property of Zero
C. Multiplication Property of -1
D. Inverse Property of Addition

Click here to see answer by MathLover1(20850) About Me 

Question 656557: k^2-3k find number that should be added to the expression to make it a perfect square
Click here to see answer by stanbon(75887) About Me 

Question 657521: -4(1+4v)=-27+7v
Click here to see answer by rfer(16322) About Me 

Question 658142: i need help with simplifying the equation 2w-3+3(w-4)-5(w-6)
Click here to see answer by colliefan(242) About Me 

Question 658314: 10p+9-11-p=-2(2p+4)-3(2p-2)
Click here to see answer by jim_thompson5910(35256) About Me 

Question 658699: Hi were would I insert the Parrentheses to get an answer of 8
16 divided by 2 X 3 + 2 + 6

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Question 658718: can u help me with a math question please.

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Question 658750: Evaluate the variable expression x,y,z x=4/5, y= -16, z=7/8
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Question 659200: how do you write "two-fifths of a number less than four times a number" and "one-half the square of a number" as an algebraic expression?
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Question 659234: What is the simplified expession of:
15m + m ?
Is it 16m ?
Thank you very much.

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Question 659339: what is the answer to i/3-10=-6

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Question 659662: Trying to solve for x???
(250/(x-5))*[((x-5)/2)/125] = 2.3

Click here to see answer by DrBeeee(684) About Me 

Question 659919: use power rules to simplify you expression(6/b^5)^3
Click here to see answer by stanbon(75887) About Me 

Question 659978: Evaluate: lim x -> (-k) (x^2+5kx+4k^2) / (x^2 +kx)
Click here to see answer by solver91311(24713) About Me 

Question 660110: 2x+4y=3 1/2 if (x, 2 3/4) what is the value of x
Click here to see answer by jim_thompson5910(35256) About Me 

Question 659976: Evaluate 5r to the second power.

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Question 660212: i need help to write an algebric expression for the following

1-three times the differece of a number and one
2-the quotient of two and three more than a number
3-the product of triple a number and five

Click here to see answer by ivene(1) About Me 

Question 660210: -(2-x)-3(6+8x)-12
I would like to know how to work this problem.

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Question 660391: evaluate 1+2+3
-----
4+5+6

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Question 660705: Evaluate 7c forc=6
Click here to see answer by jim_thompson5910(35256) About Me 

Question 660895: i need to know how to work this problem
2(1/4+1/5)+2 please help

Click here to see answer by stanbon(75887) About Me 
Question 660895: i need to know how to work this problem
2(1/4+1/5)+2 please help

Click here to see answer by ReadingBoosters(3246) About Me 

Question 661254: I am trying to help my daughter with a math problem but I am unsure of it my self the equationa are,
20=14+3(x+8)
and -20-(4x-1)=-15
If you are able to help I would appreciate it.
Thanks
Jake

Click here to see answer by Alan3354(69443) About Me 
Question 661254: I am trying to help my daughter with a math problem but I am unsure of it my self the equationa are,
20=14+3(x+8)
and -20-(4x-1)=-15
If you are able to help I would appreciate it.
Thanks
Jake

Click here to see answer by lwsshak3(11628) About Me 

Question 661293: Add one set of parentheses to the expression:
7*X+3+8*X+3*X+8-9 so that it is equivalent to 2(9X+10).

Click here to see answer by Edwin McCravy(20060) About Me 

Question 661444: 2x squared minus 5y plus 3, where x=1/2 and y=-3/4
Click here to see answer by stanbon(75887) About Me 

Question 661447: simplify: 4+8+2+6*2
Click here to see answer by MathLover1(20850) About Me 
Question 661447: simplify: 4+8+2+6*2
Click here to see answer by VirtualMathTutor(26) About Me 

Question 661782: what is the best way to solve 16-{15-[2(5+2)-4]+6}?
Click here to see answer by Edwin McCravy(20060) About Me 

Question 661931: 1)simplified form of g(x) = (x+2)(x^2-4x+3)-2x(x^2-4x+7)
2) write an expression for the sum of three consecutive even integers
3) write an expression for the product of two consecutive even integers

Click here to see answer by MathLover1(20850) About Me 

Question 662026: 0.6 -2y + 14.4 = 9
Solve...I really need to know how to solve this....

Click here to see answer by ReadingBoosters(3246) About Me 

Question 662311: in words how do i simplify 3(5-4^3)+6
Click here to see answer by stanbon(75887) About Me 
Question 662311: in words how do i simplify 3(5-4^3)+6
Click here to see answer by MathLover1(20850) About Me 

Question 662317: Evaluate the expression for r = 8, s = 2, and t = 5.
st

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Question 662318: Evaluate the expression for r=8, s=2, and t=5. Enter the answer only.
r ÷ s

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Question 661891: How do I simplify this problem?
2-1 1/2=

Click here to see answer by ReadingBoosters(3246) About Me 

Question 662226: I have 1 more problem a i cant figure out,I did a bunch of problems but i just have these few i cant get. please help.
Solve the inequality
-30> -4a + 18-2 (2 to the 3rd power -a)
the > has a line under yet.

Click here to see answer by lynnlo(4176) About Me 

Question 662275: 6
theres supposed to
be a line under the 6
x+y=
if x=3 and y=5

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Question 662443: How do I solve v = 2(x+2)(x-1)(x-4)
The book answer is 2xcubed-6xsquared-12x + 16 I can't figure out how they got that answer
Thanks for any help

Click here to see answer by ewatrrr(24785) About Me 
Question 662443: How do I solve v = 2(x+2)(x-1)(x-4)
The book answer is 2xcubed-6xsquared-12x + 16 I can't figure out how they got that answer
Thanks for any help

Click here to see answer by Edwin McCravy(20060) About Me 

Question 662457: what is the solution set using eliminaion mehod?
3x-7y=15
-5x+4y=-25

Click here to see answer by lynnlo(4176) About Me 

Question 662793: can you help me simplify the expression: 3(7 + x) + x
thank you Lydia
p.s. I've tried! and I don't seem to understand the concept.....

Click here to see answer by ewatrrr(24785) About Me 

Question 662847: How do I solve value mixture problems? I cannot seem to get the correct way to writing out the problem. here's the problem? Find the cost per ounce of a sunscreen made from 100 oz of a lotion that costs $2.50 per ounce and 50oz of a lotion that costs $4.00 per ounce.
Click here to see answer by rfer(16322) About Me 

Question 663070: 1n+4(n+9)+20
Click here to see answer by MathLover1(20850) About Me 

Question 663133: i am a three digit number represented by three digits. If you double me, i will still be a three digit number. That's true of other numbers as well, but i am larger than any of them.
Click here to see answer by checkley79(3341) About Me 

Older solutions: 1..45, 46..90, 91..135, 136..180, 181..225, 226..270, 271..315, 316..360, 361..405, 406..450, 451..495, 496..540, 541..585, 586..630, 631..675, 676..720, 721..765, 766..810, 811..855, 856..900, 901..945, 946..990, 991..1035, 1036..1080, 1081..1125, 1126..1170, 1171..1215, 1216..1260, 1261..1305, 1306..1350, 1351..1395, 1396..1440, 1441..1485, 1486..1530, 1531..1575, 1576..1620, 1621..1665, 1666..1710, 1711..1755, 1756..1800, 1801..1845, 1846..1890, 1891..1935, 1936..1980, 1981..2025, 2026..2070, 2071..2115, 2116..2160, 2161..2205, 2206..2250, 2251..2295, 2296..2340, 2341..2385, 2386..2430, 2431..2475, 2476..2520, 2521..2565, 2566..2610, 2611..2655, 2656..2700, 2701..2745, 2746..2790, 2791..2835, 2836..2880, 2881..2925, 2926..2970, 2971..3015, 3016..3060, 3061..3105, 3106..3150, 3151..3195, 3196..3240, 3241..3285, 3286..3330, 3331..3375, 3376..3420, 3421..3465, 3466..3510, 3511..3555, 3556..3600, 3601..3645, 3646..3690, 3691..3735, 3736..3780, 3781..3825, 3826..3870, 3871..3915, 3916..3960, 3961..4005, 4006..4050, 4051..4095, 4096..4140, 4141..4185, 4186..4230, 4231..4275, 4276..4320, 4321..4365, 4366..4410, 4411..4455, 4456..4500, 4501..4545, 4546..4590, 4591..4635, 4636..4680, 4681..4725, 4726..4770, 4771..4815, 4816..4860, 4861..4905, 4906..4950, 4951..4995, 4996..5040, 5041..5085, 5086..5130, 5131..5175, 5176..5220, 5221..5265, 5266..5310, 5311..5355, 5356..5400, 5401..5445, 5446..5490, 5491..5535, 5536..5580, 5581..5625, 5626..5670, 5671..5715, 5716..5760, 5761..5805, 5806..5850, 5851..5895, 5896..5940, 5941..5985, 5986..6030, 6031..6075, 6076..6120, 6121..6165, 6166..6210, 6211..6255, 6256..6300, 6301..6345, 6346..6390, 6391..6435, 6436..6480, 6481..6525, 6526..6570, 6571..6615, 6616..6660, 6661..6705, 6706..6750, 6751..6795, 6796..6840