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

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Question 402892: Evaluate the expression 6a – 3x – 2y, if a = 3, x = 7, and y = 4.
Click here to see answer by jim_thompson5910(35256) About Me 

Question 403009: i don't think that i selected the right topic for what i'm doing. i'm in pre-algerbra 7th grade. this is my problem, 5/8(p-4)= 2. i think you use distributive property, bring down 5/8 and make it 5/8p. multiply 5x4=20. 8x4=32, make that a fraction,20/32. 5/8p - 20/32=2. do you make the dimoninateors the same? so, multiply 5/8p by 4? so now it would be, 20/32p. this is where i'm stuck!the written problem would now be, 20/32 - 20/32p=2. would you resipical the 20/32 to 32/20? discard it. the problem now who be, 20/32p=2. would you make the 2 into 2/1 and multiply it by 32/20? 2/1 x 32/20 =32/10 which is reduced down to 3 1/5 is that the correct answere?
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Question 403074: write the expression that represents 8 less than 1/3 of a number
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Question 403185: simplify -3a+(6a-1)-4(a+1)
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Question 403184: -3a+(6a-1)-4(a+1)
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Question 403939: Please evaluate: 19-5/(1/3+1/2) and show me how to work the problem.
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Question 404194: Make an equation: 1) Use only odd numbers 2) Equivalent to 31 3) No addition allowed
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Question 404295: a sum of money is invested in an account at an annual interest rate of 10% and is compounded every four months. Determine the percentage increase of that sum during a five year period. Could you show me the steps you take to get the answer thank u
Click here to see answer by rfer(16322) About Me 

Question 404299: Archimedes discovered that if an object, that is more dense than water, is submerged in water then an amount of water equal to the volume of the object is displaced by that object. A rectangler tank 4 feet is filled to a depth of 3 feet with water. A sphere with a diameter of 3 feet is immersed in the tank. How much does the water rise in the tank?
Click here to see answer by ankor@dixie-net.com(22740) About Me 

Question 404504: Evaluate. 7-3
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Question 404527: 3(2x+1)+4x=
Click here to see answer by richard1234(7193) About Me 

Question 404567: multiply the expression 3x+12/x^2+5x+6 * 4x+12/ 2x+8



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Question 405446: could someone please show me how to do these? Evaluate: |4| + |–3|
. Evaluate: |–9| – |–4|
. Add: 7 + (–9) + (–5) + 6
Add: 1/3 +(5/6)+(-1/2)

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

Question 405462: could someone show me how to do this? . Evaluate: |–27 + 14|
. True or False: |–8| + |3| = |–8 + 3|
. Evaluate: (–6)2 – 42

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Question 405571: "if an angle measures 24 degrees its complement (90-24)and its supplement is (180-24), if angle A measures X degrees what would its complement and it supplement be?"

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Question 406659: Could someone please help me with this problem? I need to Evaluate: (–3)(–6) + (4)(–2)
I am not sure how to do this I would appreciate the help.

Click here to see answer by mananth(16946) About Me 

Question 406654: could someone please check this problem for me to see if I am doing it right?
1)-1/2-(-5/8) = -4/8+5/8 = (-4+5)/8= 1/8

Click here to see answer by mananth(16946) About Me 

Question 406680: Could someone please check these problems for me to see if I have done them right?
(-9)(5)/-3=(-45/-3=15=-15
4-(-3)+1/2-2divided by(-2)=8/2+1=8/3=2 2/3
9^2-(-6)^2=9^2-(-36)=81+36=117=-117
(-9)(5)/-3=(-45)/-3=15=-15
(-6)^2-4^2=(-36)-4^2=36+16=52=-2-52

Click here to see answer by Alan3354(69443) About Me 
Question 406680: Could someone please check these problems for me to see if I have done them right?
(-9)(5)/-3=(-45/-3=15=-15
4-(-3)+1/2-2divided by(-2)=8/2+1=8/3=2 2/3
9^2-(-6)^2=9^2-(-36)=81+36=117=-117
(-9)(5)/-3=(-45)/-3=15=-15
(-6)^2-4^2=(-36)-4^2=36+16=52=-2-52

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

Question 406869: 4(8-3w)=32-8(w+2)
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Question 406774: !!!!!!! HELPP MEEEEEEEEEEEE!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
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Question 406787: How do i solve a expression problem
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Question 407838: could someone check to see if I have done this right. subtract 7/6 - (-13/18
7/6 - (-13/18)= 21/18- (-13/18) = 21/18 - 13/18= 8/18=-8/18

Click here to see answer by jim_thompson5910(35256) About Me 

Question 409170: I need help on the steps to simplify a problem like the following:
8+5(3c-1)
thanks,
Amanda

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Question 409167: I have been studying all day and doing practice problems from my math book to get me ready for a test. I am stuck at 3.1 in my book. I am to this point and i do not understand how to solve a problem like the following:
simplifying expressions:
3+6(w+2)+w
I know I have to use the distributive property, Where I am confused is what do I do with 3+6 Do i add this and then use the answer to distribute over (w+2) and then add +w? I just really need to know the steps so that i can practice more problems like these

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Question 409768: How do you figure out (a+b)^3 (exponent of 3)?
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Question 410774: what does evaluate the expression 1,080 divided by 2 for each value of n
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Question 411213: how do u figure an equation like this (1/3)y2+12=5(3)
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Question 411589: where do the parentheses goes in the math expression [5-6x4/6+5] to come up with -29?
Click here to see answer by jjordan95(63) About Me 

Question 338820: The sum of two integers is 93. If one of them is (– 59), find the other.
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Question 341768: 5x - 4(x +9) = 2x - 3
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Question 412113: Am I working this problem correctly
10+y/4 for y=3
10 +3/4= 13/4

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Question 412624: I need help factoring the expression completely.
the problem is 6x^2+27x+27.
Please help me..
Thank You for your time.

Click here to see answer by jjordan95(63) About Me 

Question 412684: In interval notation what do parentheses ( ) and brackets [ ] indicate?
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Question 413178: evaluate y^2-7 when y=-8
I am drawing a blank

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Question 413327: Which of the following expressions is equal to 6 – 4(x + 3)?
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Question 414337: I know this may seem strange but I need to know what this symbol means.≈
Thank you so much I am lost.

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

Question 414590: (8x raised to the 2nd power + 3x-4) + (x+7)?
Click here to see answer by praseenakos@yahoo.com(507) About Me 

Question 414931: x+5=2x-3 what is the value of x?
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Question 415122: Make T the suject.
M = V ln T
I have T = ln(m/v)

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Question 415128: i=io e^(-Rt/L)
i=0.1
io=4
R=150
L=0.012
Solve for t

Click here to see answer by stanbon(75887) About Me 

Question 415214: evaluate 3/4+2(1/5)to 2nd power
I did 1/5 first 1/25
3/4+2(1/25)= 3/4 X 3/25 = 9/100

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Question 415345: (6 divide 3) 3rd power + 4 to 2 power divide 8
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Question 416164: 2x(4+3x)
Click here to see answer by jim_thompson5910(35256) About Me 

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