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

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Question 334621: what is the evaluation of y+15-c+12-x if x=7, y=10, and c=8?
Click here to see answer by solver91311(16868)

Question 334677: Economic lot size model. d=daily demand rates, p=daily production rate, t=number of days for a production run. The book saids that max. inventory is (p-d)t . t=q/p days. Thus maximum inventory = (p-d)t =(p-d( (q/p)= (1-d/p)q. Please help me make some sense out of these equations. Thank you.
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Question 334726: a2+b2-2ab for a=5 and b=8
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Question 334720: 4(95-8x)=x-115
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Question 334827:
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Question 335005: 6/5 to the 3rd power how do i solve this?
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Question 335005: 6/5 to the 3rd power how do i solve this?
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Question 335005: 6/5 to the 3rd power how do i solve this?
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Question 335065: Remove parentheses and simplify
2p+3q-6(2p-8q+7r)=
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Question 335137: (7+[(32/16)*4]-6)
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Question 335137: (7+[(32/16)*4]-6)
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Question 335162: I'm a two-digit base-ten numeral. I am equal to six times the sum of my digits. Who am I?
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Question 334185: Simplify completely: (5/6 divided by 5/3)+3/7
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Question 334182: Solve: 3A/4+1=2A-1/3

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Question 335302: 4a+7b+3a-2b+2a; a= -5 and b=3
no cluee. helpp pleaseee
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Question 335374: Simplify 4(8-6)^2 + 4x3-2x8/4
Click here to see answer by benazir.sj@gmail.com(109)

Question 335380: 15x3(2)-2(3)=15 is my problem
i don't know how to arrive at this solution
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Question 335448: (2x-1)(4x+1)
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Question 335469: if 10X198= (10xm)-(10x2), what is the value of m?
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Question 335358: Write the given expression F(x)=1/3x^2+x+1 in the form F(x)=a(x-h)^2+k.. and find the vertex
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Question 335735: are these two problems the same?
2 + 3 x (5 - 2) and 2 + 3(5-2)
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Question 336463: simplify- 4*(g*6)
*=multiplication
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Question 336520: find the value of expression
3{3^2+6(2+5)}
Click here to see answer by unlockmath(1599)

Question 336562: how do i solve
2/5(10q-15)+6=94
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Question 336476: write the phrase as a mathematical expression. Use x to represent the number. Combine like terms if possible.

Eight times a number, added to the sum of the number and three.
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Question 337027: my expression is.... 4+5(x-7)^3, for x=9
i have the answer but i can't seem to figure it out myself! it's not the only one either but i guess i just don't know how to use parenthesis and exponents together. help???
thank you
Click here to see answer by mananth(12270)

Question 337172: what is 18-c=33-22
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Question 337172: what is 18-c=33-22
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Question 336235: I think this is the right topic. i need to know the value of 1x by its self. 7 over 3x+4=x+1
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Question 337529: evaluate the expression y=-2 1/4
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Question 337288: How do you translate this phrase as an inequality: an age that is at least 16 years old.
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Question 337727: Please help me solve:
-x^2-10x; x=-1
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Question 337890: You can estimate how fast you walk in miles per hour by evaluating the expression n/30, where n is the number of steps you take in one minute. Find your speed if you take 96 steps in one minute.

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Question 337924: how do u evaluate each expression for the replacement set{3,4,9} the question is a-2
Click here to see answer by jim_thompson5910(28476)

Question 338054: I am stuck on a problem and I keep getting the same answer. The problem is
If x=7 and y=2 (This is a fraction problem) I am getting 4/5 but the answer I am told in the book is 0.3 (infinite) Thank you!!!
2x - 2y + 2
____________
36 - 3x
Click here to see answer by jim_thompson5910(28476)

Question 338110: I also need help with these math problems from pages 683- 684
40. 7 + (-9) + (-5) + 6
48. 1/3 + (- 5/6) + (-1/2)
58. Evaluate each of the following expression | -27 + 14|
66. Label each of the following statements as true or false |-8|+|3|=|-8+3|
Section 9.3 page 689
44. - 1/2 - (-5/8)
48. - 3.4 - (-7.6)

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Question 338098: I need help with these two math problems.
Evaluate problem 32. |4| + | -3|
Evaluate problem 44. | -9| - | -4|

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Question 338266: -[-5(-2) + 3(-2-4)] With the - outside the [ do i change the value of all the numbers in the problem?
Click here to see answer by checkley77(12569)

Question 338332: How would you simplify this: 9a+10(6a-1)
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Question 338441: Steps on how to make an equation true by adding parentheses 2³-7×4=4
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Question 338552: please help me to solve this question :9x2y-2xy+5-(3-15xy+20x2y)
Click here to see answer by Alan3354(30959)

Question 338640: Someone please help!!!
Simplify: 1/3(6x+3)-4(3x-2)
A. -10x+9
B. -9x+9
C. -10x-1
D. -10x-7
Thank you so, so much!!!!
Click here to see answer by jim_thompson5910(28476)

Question 338623: If m(p + r) = 0, then which of the following expressions must be true?
I. m = 0 II. m = 0 and p = -r III. m ≠ 0 and p = -r

(A) I Only (B) II Only (C) III Only (D) I II Only E) II III Only

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Question 338718: simlify the expression
2+9(2+5)
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Question 338815: If x a / y - a = 1 and x>0 and y>0 then which expression best represents a?
a y/x+1 b y+1/x+1 c x-1/y d x/y+1 e x+1/y
Click here to see answer by Fombitz(13828)

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