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

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Algebra: Evaluation of expressions, parentheses

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Question 175578: I know these general prices: pulpwood is $7.00 per ton C/S is $12.00 per ton and sawtimber is $29.00 per ton. This ratio between prices should be maintained for the solution. I have determined that one acre of land has 20 tons of pulpwood 60 tons of C/S and 30 tons of sawtimber. I have sold the wood to someone who paid me a lump sum of $12,000..00. How much was paid for each unit of wood; pulpwood=?per ton, C/S =?per ton, and sawtimber = ? per ton. The answers should if possible result in the same ratio between prices as the beginning statement. I would also like to know how to solve this problem so that I can plug in the correct varriables.
Thanks,
Click here to see answer by stanbon(26297)

Question 175681: 4.) Simplify (3x – 5)(2x +1)

5) Simplify (x2 + 4)(x2 – 5)

Click here to see answer by stanbon(26297)

Question 175680: 11) Simplify -24a3b5 + 36a2b2 – 12ab2 divided by –4ab. can you show the work please.
Click here to see answer by stanbon(26297)

Question 175596: this expression <2+(5*33)/6+1e-2> is supposed to have an answer of 29.51. How do you get this answer, please show work.
Click here to see answer by stanbon(26297)

Question 175783This question is from textbook Mathematics
: I am trying to help my son with the following expression:
(84/z)-6 for z=7_____
Thanks for your helpThis question is from textbook Mathematics

Click here to see answer by josmiceli(3013)

Question 175786: Evalute expression:
3x-4y+9 when x=2 and y=5
Click here to see answer by Edwin McCravy(2922)

Question 175781: Simplify (3y – 2)(4y2 + 3y –5)......thanks
Click here to see answer by Edwin McCravy(2922)

Question 175784This question is from textbook Mathematics
: Evaluate thefollowing expression
(48/h)*2forh=8
Thanks for your helpThis question is from textbook Mathematics

Click here to see answer by solver91311(5072)

Question 175780: 1.) simplify (13x4 – 3x3 + 2x2) – (4x5 – 6x4 + 5x3 + 2x2 – 4x0)

2) Simplify 5x3(4x2 – 11x)

can you show the steps please?

Click here to see answer by Alan3354(6097)

Question 175767: Multiply:
Combine: [(2/5)x^2+(3/4)x+5-[(2/3)x^2-(2/3)x-6]
Multiply: (2y+3)(2y-5)
Click here to see answer by EMStelley(143)

Question 175714: Simplify
Click here to see answer by EMStelley(143)

Question 175805: 6) Evaluate 2x3y – 5xy2 +5xy + 3y – 4 for x = -2 & y = +3

7) Simplify (12x3y3 – 5x2 + 3y2) – (4x3y3 + 6x2y – 3x2 + 5)

8) Simplify ((-8a-1b-3)/(2a3b))-2

help pleaseeeeeeeeeeeeeeeee!!!
Click here to see answer by EMStelley(143)

Question 175818: Use multiplying by 1 to find an expression equivalent to 5/17 with a denominator of 119x
Click here to see answer by nerdybill(2448)

Question 175819: Use multiplying by 1 to find an expression equivalent to 5/17 with a denominator of 119x
Click here to see answer by stanbon(26297)

Question 175675: Hello, I'm stumped with these problems. Also can you show me how you came to your answer, so I can better understand it. Thanks
13) Simplify SR(45x^23)

14) Simplify 4th root of (x^5 divided by 16y^15)

15) Simplify (x1/4 y1/2)2(x2y3)1/2

Click here to see answer by ankor@dixie-net.com(6693)

Question 175803: 13) Simplify SR(45x^23)

14) Simplify 4th root of (x^5 divided by 16y^15)

15) Simplify (x1/4 y1/2)2(x2y3)1/2
thanks so much!!
Click here to see answer by Alan3354(6097)

Question 175862: 54.) simplify...(x+2)(x²+x+5)...just need help with this one. please
Click here to see answer by stanbon(26297)

Question 175863: 18) 49x7 –28x5 –7x4

7x³

Click here to see answer by stanbon(26297)

Question 175437: USE RULES when possible to simplify: can you help me please? and can you show how you got it. Thanks Thanks

12) (x³-y³) - (-6x³+x²y-xy²+2y³)

13) (3x-y)(2x+5y)

14) (7xy²-10y)(7xy²+10y)

15) (xy+ab²)(xy-ab²)

Click here to see answer by EMStelley(143)

Question 175917: simplify.....thanks so much
35) (-64)^1/3 =
36) (81)^1/4 =

Click here to see answer by jim_thompson5910(13794)

Question 175916: simplify
16) (-2a8 / b³)5

17) –15y13 / 45y9
thanks

Click here to see answer by jim_thompson5910(13794)

Question 175678: 1.) Simplify (13x4 – 3x3 + 2x2) – (4x5 – 6x4 + 5x3 + 2x2 – 4x0)

2) Simplify 5x3(4x2 – 11x)

3) Simplify (3y – 2)(4y2 + 3y –5)

can you please show me how you got the answers?

Click here to see answer by EMStelley(143)

Question 175933: Simplify

23) (5x³)²/x7

24) (x6 / x²)-3

Click here to see answer by stanbon(26297)

Question 175959: 20)4^-2
simplify
Click here to see answer by josmiceli(3013)

Question 175959: 20)4^-2
simplify
Click here to see answer by tutorcecilia(2042)

Question 175960: 22) x-12 / y-1
simplify
Click here to see answer by stanbon(26297)

Question 175958: 18) 49x7 –28x5 –7x4
7x³

19) 25x8 – 50x7 + 3x6 – 40x5
-5x^5
simplify
Click here to see answer by checkley75(3666)

Question 175957: 188.) (7xy²-10y)(7xy²+10y)

221.) (xy+ab²)(xy-ab²)
simplify....thanks

Click here to see answer by stanbon(26297)

Question 175957: 188.) (7xy²-10y)(7xy²+10y)

221.) (xy+ab²)(xy-ab²)
simplify....thanks

Click here to see answer by checkley75(3666)

Question 175989: 243.) 3x³*5x14 / 20x14...simplify
....thanks...this is my last homework problem. thanks
Click here to see answer by stanbon(26297)

Question 176079This question is from textbook
: 14-3m*2=13 can you help solve
This question is from textbook

Click here to see answer by Alan3354(6097)

Question 176256: Please evaluate question.
A=3 b=9 c=6
Evaluate 5ab ??
Im stuck, Thank you!
Click here to see answer by Mathtut(3670)

Question 176255: What is the average temperature of these three days?
1.70
2.62
3.72
Please explain how I would figure this?
Thank You!
Click here to see answer by Mathtut(3670)

Question 176253: x=5 y=7
evaluate xy

Thank you very much, I am new to algebra and confused on this particuliar evaluation?
Click here to see answer by Mathtut(3670)

Question 176263: 7/m^2n-2/5mn
Click here to see answer by stanbon(26297)

Question 176271: (5y/((y^2)-3y))-(7/(3-y))
Click here to see answer by Alan3354(6097)

Question 176445: Can someone help me with this problem I have to evaluate the expression

-3to the second power-5[4-2(4-9)

Click here to see answer by jim_thompson5910(13794)

Question 176724This question is from textbook intermediate algebra
: This question is from textbook intermediate algebra

Click here to see answer by Mathtut(3670)

Question 176940: Good evening, I am back in algebra and I am lost:(. How do you factor:
-5w - 5u + wy +yu? Any help would be appreciated
Click here to see answer by jim_thompson5910(13794)

Question 177171: i am trying to solve this problem..... (3x) to the -1/3 power using log table???
Click here to see answer by Earlsdon(4900)

Question 177314: Remove the parentheses. –(3x + 5y)
Click here to see answer by jim_thompson5910(13794)

Question 177405: I need to remove all brackets & parentheses and simplify"
9{[4(m-5)+19] - [2(5m-2) +1]}
please show me step by step
Click here to see answer by jim_thompson5910(13794)

Question 177535: 3) The lengths of the sides of an irregular octagon are measured in metres and are given by the following expressions:
x, (x -2), (x -3), (x + 5), 3x -2, 6, 2x + 8 and 2(x +5).
a) Create an equation for the perimeter P of the octagon and then simplify the expression.
The total length of the perimeter of the octagon is 86m.
b) use your answer to part a) to find x and the length of al the sides of the octagon.

Click here to see answer by Fombitz(2113)

Question 177701: At 9:00 a.m. a truck leaves the truck yard and travels west at a rate of 45 mi/hr. Two hours later, a second truck leaves along the same route, traveling at 55 mi/hr. When will the second truck catch up to the first?
Click here to see answer by kollanag(3)

Question 177702: How many pounds of hamburger that costs $1.60 per pound must be mixed with 70 pounds of hamburger that costs $2.10 per pound to make a mixture that costs $1.70 per pound
Click here to see answer by stanbon(26297)

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