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

Tutors Answer Your Questions about expressions (FREE)

Question 476082: 6(6)-(12-3)
Click here to see answer by MathLover1(6634)

Question 476120: Show that the sum of 11 consecutive integers is always divisible by 11.
Show that the sum of 12 consecutive integers is never divisible by 12.
Show that n(2n + 1)(7n + 1) is divisible by 6 for all integers n.
Find all integers n such that n(2n + 1)(7n + 1) is divisible by 12.
Click here to see answer by tinbar(128)

Question 476411: evaluating the expression 15 – 5(16 - 7)

Click here to see answer by Tatiana_Stebko(1326)

Question 476438: Please help me solve this problem:
10y=5y+9+4y
Thank you!
Click here to see answer by bucky(2189)

Question 476762: solve the equation:
3/2n=n+4
3-4h=5-2h
Click here to see answer by checkley79(3050)

Question 476836: Evaluate
P(-1/2) if P(x) = 7x^4 + 7x^2 -4
Click here to see answer by MathLover1(6634)

Question 476853: factor the algebraic expressions completely
-18a^2 + 17a +15
Click here to see answer by jim_thompson5910(28595)

Question 476851: factor the algebraic expressions completely
12x^2 -34x + 24
Click here to see answer by jim_thompson5910(28595)

Question 477679: how do you write algebraic
Click here to see answer by Edwin McCravy(8909)

Question 478040: Factor completely
8x^2+x-30
Click here to see answer by stanbon(57347)

Question 478381: 16+4x(7+8)-3
Click here to see answer by jorel1380(2518)

Question 478381: 16+4x(7+8)-3
Click here to see answer by rfer(12660)

Question 478632: please help me...pboblem 1:MAMBO IS 15kg HEAVIER THAN POKAM.SUAMBA IS 3kg LIGHTER THAN POKAM.LET m BE THE WEIGHT OF MAMBO.WRITE AN EXPRESSION FOR POKAM'S WEIGHT IN TERMS OF m?
Click here to see answer by MathLover1(6634)

Question 478653: 8(xy)
ihelp learning how to do algebra. im taking college courses and never took this before.
Click here to see answer by Alan3354(30993)

Question 479322: 3/2-(-2 3/4) how do i solve this i have to evaluate the expression
Click here to see answer by Alan3354(30993)

Question 479329: how do you evaluate this epression (-2 1/2)-2/7-(-1 1/8)
Click here to see answer by rfer(12660)

Question 479619: (-x)^2-5x for x=-3
Click here to see answer by Aswathy(23)

Question 479661: Simplify

3b-(-12-b)
Click here to see answer by nerdybill(6959)

Question 480171: 5.8+(-2.5)
Click here to see answer by Tatiana_Stebko(1326)

Question 480404: write an algebraic expression to model each situation
what is the total cost of buying several shirts at $24.95 each
Click here to see answer by mananth(12270)

Question 480736: I need help simplifying this expression:
((ax^2)/y)^2(y^2/(a^2x))^3
I know the answer, (xy^4)/a^4, but what are the steps to get there?
Click here to see answer by Tatiana_Stebko(1326)

Question 481021: 0/0.1
Click here to see answer by rfer(12660)

Question 481020: -12-5+6 what is done first
Click here to see answer by rfer(12660)

Question 481217: 2x^2 + 3x -1 = 0
Click here to see answer by jim_thompson5910(28595)

Question 481586: Can someone help me with this?
Raise the quantity in parentheses to the indicated exponent, and simplify the resulting expression.
(3x^10y^9)^3
Click here to see answer by nerdybill(6959)

Question 481923: EVALUATE 6a+8b

Click here to see answer by Alan3354(30993)

Question 482511: The quotient of the square of a number t and 14

Click here to see answer by LagrangeSon678(5)

Question 482979: use the expression 64-20 divided by 4+6

Click here to see answer by unlockmath(1599)

Question 483034: Insert parentheses to make each pair of expressions equal.
5+3x4=32

Click here to see answer by Alan3354(30993)

Question 483035: evaluate 6/2 - 20
Click here to see answer by jim_thompson5910(28595)

Question 483022: a shoe store uses a formula(3x-12) to calculate the size of a shoe according to the shoe "last" . a last is a template that is used to make the shoe. to determine the size of a childs shoe, the matching las is found and the last lenght is multiplied by three then 12 is subtracted feom the product. the lasts are measured in inches in multiple of one third . what size is the shoe that fits a child's foot whose matching last 7 inches long
Click here to see answer by solver91311(16885)

Question 483048: this worksheet that I have follows:
Suppose you could perform operations in any order you like.
A) What are the different possible values of the expression, 10-5x2-3?
The answer to the 10-5x2-3=-3 BUT what does different possible values mean?
Is it the different ways you can put the 10-5x2-3??? Im so confused...
Click here to see answer by jim_thompson5910(28595)

Question 482978: use the expression 64-20 divided by 4+6
Click here to see answer by Alan3354(30993)

Question 483077: Iam not in understanding of the substitution method can someone please help?

4x+6y=16
6x +y =3
Click here to see answer by MathLover1(6634)

Question 483077: Iam not in understanding of the substitution method can someone please help?

4x+6y=16
6x +y =3
Click here to see answer by lwsshak3(6505)

Question 483174: how do i simplify this expression 3q2 (squared) + q - q2 (squared)
Click here to see answer by edjones(7569)

Question 483433: evaluate the expression in tems of fractions
2/3+0.1
Click here to see answer by rfer(12660)

Question 483728: Perform the indicated operations and write the answer in the form a+bi where a and b are real.
(3+2i)^2
and
i^3-i^2
Click here to see answer by MathLover1(6634)

Question 484366: solve. Express in the simplest form
1.5a^5b^4-(-2a^4b^5)
2. 5j^3k^2-2j^3k^4
3.(-4e^3f^2)(2e^4f^5)
4. 8x^5y^6z^7/4x^2y^3z^5
5. -9r^9s^7+^8/-3r^3s^4t^5
Click here to see answer by solver91311(16885)

Question 484365: express each answer in exponential form
1. 4^2 x 4^7
2. 8^4/8^2
3. 2^ + 2^8

Click here to see answer by jim_thompson5910(28595)

Question 484486: If President Reagen served n terms and each term is four years how many years did he serve

Click here to see answer by chessace(471)

Question 484923: is there 2 numbers less than 1 that can be multiplied to make a number greater than 1?
Click here to see answer by Alan3354(30993)

Question 484923: is there 2 numbers less than 1 that can be multiplied to make a number greater than 1?
Click here to see answer by Edwin McCravy(8909)

Question 484759: Translate into an equation. The variable y is equal to 3 more than 5 times the variable x? I have y=3+x(5) I do not think this is correct.
If 7 is added to 3/5 of the variable x, the result is equal to the variable y.
Thankyou
Click here to see answer by ankor@dixie-net.com(15652)

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