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

Tutors Answer Your Questions about expressions (FREE)

Question 155913: 0-07-865113-1
algebra equation 48(3 1/6)
How will break this down?
Click here to see answer by stanbon(75887)

Question 156093: I really need help with this one. I need to evaluate:
{6(5 - 7) + 2}^3 � (-2) - 3^2.
I got it all wrong the first time and I'd like to see what you come up with. Thanks so much.
Click here to see answer by Alan3354(69443)

Question 143714: Can someone, please help me. i have tried and tried to figure this out, but don't know where to begin. Thank you in advance.
simplify the following algebraic expression:
(u^8 z^7)/z^-3 u^-2
Click here to see answer by Alan3354(69443)

Question 156033: please help me solve, [4x-1]-[2x+2]=x+5
Click here to see answer by dave41082(4)

Question 156007: 5(2m+5)-6

Click here to see answer by jim_thompson5910(35256)

Question 156210: which is an expression that shows the earning of a telemarketer who worked for 23 hours at a salary of d dollars per hour
Click here to see answer by checkley77(12844)

Question 156441: Need to come up with an answer of either 21 or 45.
3^2 / 1/3 + 3 x 6 = ?
Click here to see answer by jim_thompson5910(35256)

Question 156441: Need to come up with an answer of either 21 or 45.
3^2 / 1/3 + 3 x 6 = ?
Click here to see answer by gonzo(654)

Question 156560: where would you put the parenteses
use ( ) and use[ ] if needed
4*8+1+2*6-10=200
Click here to see answer by oscargut(2103)

Question 156561: Where would you put the parentesses
use ( ) and use [ ] if nneeded
3+5-4^2-2=14
Click here to see answer by oscargut(2103)

Question 156548: Hi, my son is having problems with his pre algebra homework. His teacher has not issued a math book to assist. his two equations are
8(2x-3)-6x, if x=3
9-2(4x+5) if x = -4
will you be able to assist thank you
Click here to see answer by oscargut(2103)

Question 156569: Kay can solve equations at the rate of 26 per hour. Dan can solve them at the rate of 20 per hour. Prior to starting to work their equations, Kay solved 3 equations in study hall while Dan solved 8.
a. defina the variable for the number of hours they worked in study hall
b. how many equations has each solved after 20 minutes
c. How long will it take until each has solved the same number of equations?
d. There are 27 total equations. How long does it take each to complete?

Click here to see answer by gonzo(654)

Question 156503: -x^3+2x(x-x^2)
Click here to see answer by atique.ah(27)

Question 156502: x^2+3x+2 x^2+5x+4
________ / _________
x^2+7x+12 x^2+5x+6
Click here to see answer by stanbon(75887)

Question 156695: How do I solve for x in the following:
(x x x) - 3 = 8x (the xxx in paranthesis is x times x times x)
thank you!
(it is a teacher created homework problem and not a problem in text. Even looked in text trying to find a model problem and could not. We are in the Mcdougal Littel Algebra 1 book.)
Click here to see answer by stanbon(75887)

Question 156777: Find the volume of a right cicular cyclinder that has a radius of 1.25 in and a height of 5.25 in
Click here to see answer by nerdybill(7384)

Question 157167: evaluate the expression y/3/4 for each value of y
problem: y=-9/16
Click here to see answer by jojo14344(1513)

Question 157223: -1-(-6-(4--6)
Click here to see answer by checkley77(12844)

Question 157209: 1/3(b+12)-1/4(b+12)
Click here to see answer by checkley77(12844)

Question 157205: (-2)(4)+5[6-(-2)]
__________________
(-2)[9+(-5)]
Click here to see answer by checkley77(12844)

Question 157295: I have a difficulty with my daughter's algebra book. She has been taught something about apply exponents to negative numbers I am not so sure about. specifically she was taught that -8^2=-64, in effect that the formula is equivalent to -(8)^2, whereas I thought it was the equivalent to (-8)^2 and therefore would be +64. We checked her textbook and it clearly supports what she was taught, but clearly contradicts what I do in engineering. Can someone either correct me or point me to a correct resource?
Click here to see answer by midwood_trail(310)

Question 157575: My daughter does not understand how 8-4t was arrived at from

Click here to see answer by jim_thompson5910(35256)

Question 157658: write an expression for the number of gallons in y quarts
Click here to see answer by edjones(8007)

Question 157803: -7a+3(a-c)+5c
Click here to see answer by jim_thompson5910(35256)

Question 157803: -7a+3(a-c)+5c
Click here to see answer by naveerhl(3)

Question 157811: 3(9k-4)-4(5n-3)
Click here to see answer by jim_thompson5910(35256)

Question 157928: Evaluate 10/x + 2 when x=3
Click here to see answer by nerdybill(7384)

Question 157928: Evaluate 10/x + 2 when x=3
Click here to see answer by naveerhl(3)

Question 158021: a2+5ab2-3b2+7a2b-ab2=a2
Click here to see answer by integral13(8)

Question 158207: (64)^-4/3
Click here to see answer by jim_thompson5910(35256)

Question 158207: (64)^-4/3
Click here to see answer by checkley77(12844)

Question 139072: Create the number 24 by using only a 1,3,4, and 6. The only operations symbols you can use are +,-,/, and x(you may use parenthesis).
Click here to see answer by Alan3354(69443)

Question 158526: Placing planks at equel length end to end, jewels found that three planks where one foot short of the portch length, while four planks were two feet to long. How long was each plank?
Click here to see answer by stanbon(75887)

Question 158663: Please help me solve the two problems below:
abc - f = g solve for e
---
de

Click here to see answer by edjones(8007)

Question 158854: Hi. I am confused about the correct order of operation for the following problem:
"Evaluate the expression WHEN y = 1/7, x = 2/7"
The given answer 10/49, but I argue it is 5/2. Could you help?

Thank you
(Please note that in the original problem, a fraction bar is not used and a division sign is. Also, the "10 times x" above was originally written "10x." Does this make a difference?)

Click here to see answer by ranjithraghuram(4)

Question 159053: 19 less than the product of n and -2
Click here to see answer by jojo14344(1513)

Question 159003: Usse the variable expression 3x - 1
Evaluate the expression when x= -3, -2, -1, 0, 1, 2, and 3
Click here to see answer by checkley77(12844)

Question 159243: 5x+2+3(x-1)
Click here to see answer by checkley77(12844)

Question 159243: 5x+2+3(x-1)
Click here to see answer by jim_thompson5910(35256)

Question 159276: (-3y+2x)(-2)+y+(-x)
My son has been confused on minus vs negatives and so we don't know if the answer is 7y-3x or 7y-5x
Thank you
Click here to see answer by jim_thompson5910(35256)

Question 159276: (-3y+2x)(-2)+y+(-x)
My son has been confused on minus vs negatives and so we don't know if the answer is 7y-3x or 7y-5x
Thank you
Click here to see answer by jojo14344(1513)

Question 159276: (-3y+2x)(-2)+y+(-x)
My son has been confused on minus vs negatives and so we don't know if the answer is 7y-3x or 7y-5x
Thank you
Click here to see answer by checkley77(12844)

Question 159435: how do you write ten minus the quotient of one number and another number as an algebraic equation?
Click here to see answer by jojo14344(1513)

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