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

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Question 179597: Multiply out ( x + 6 )( x3 – x2 – 5x + 1 )
Click here to see answer by Mathtut(3670) About Me 

Question 179791: please solve for ?
? x 1/5=3/7

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Question 179937: Find -11/5+6/5
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Question 179981: If a tree is 6 feet tall and grows 2 feet a year, what is the expression for the growth of the tree in y years?
Click here to see answer by Mathtut(3670) About Me 

Question 180135: Find the equivalent expression with this denominator.
2/x= ?/x2

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

Question 180371: Simplify: y^2-6y+9/y^2-3y
Click here to see answer by Mathtut(3670) About Me 

Question 180537: Multiply:
(2x - 1)(2x2 - 3x + 2)

Click here to see answer by bandgeek1749(3) About Me 

Question 180601: Q=7m+3n, R=11-2m, S=n+5, and T=-m-3n+8 to find following sum/difference.

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Question 180644: what is m-(-2)=9
Click here to see answer by Mathtut(3670) About Me 

Question 180693: 6. If Leah is 6 years older than Sue, and John is 5 years older than Leah, and the total of their ages is 41. Then how old is Sue?
A. 8
B. 10
C. 14
D. 19
E. 21

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

Question 180697: The width of a rectangle is fixed at 17 cm. What lengths will make the perimeter greater than 82 cm.
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Question 180690: 2. If Sally can paint a house in 4 hours, and John can paint the same house in 6 hour, how long will it take for both of them to paint the house together?
A. 2 hours and 24 minutes
B. 3 hours and 12 minutes
C. 3 hours and 44 minutes
D. 4 hours and 10 minutes
E. 4 hours and 33 minutes

Click here to see answer by Alan3354(69443) About Me 

Question 180692: 5. Solve the following equation for A : 2A/3 = 8 + 4A
A. -2.4
B. 2.4
C. 1.3
D. -1.3
E. 0

Click here to see answer by HyperBrain(694) About Me 

Question 180638: 1/3*3^2-3/8*4^2
Click here to see answer by checkley77(12844) About Me 

Question 180694: What is the length, in feet, of the hypotenuse of a right
triangle with legs that are 6 feet long and 7 feet long,
respectively?
F. square root of 13
G. square root of 85
H. 13
J. 21
K. 42

Click here to see answer by nerdybill(7384) About Me 

Question 181017: 17.3 - 2.7 = 10.55
Click here to see answer by Alan3354(69443) About Me 

Question 181137: x^2-4x+4
Click here to see answer by Mathtut(3670) About Me 
Question 181137: x^2-4x+4
Click here to see answer by solver91311(24713) About Me 

Question 181229: Hi please help,
3/4 PIE + 1/2 COOKIE - 1/4 COOKIE + COOKIE + 1/2 PIE - 1/4 PIE - 3/4 COOKIE.
THANKS
EVELYN

Click here to see answer by Mathtut(3670) About Me 

Question 181299: Is -1 a solution of 4square -1=4y + 3 ?
I have trouble working these I do understand you have to do to the same side as you do to the other. please understand I am a 40 year old going back to school and never had algebra in high school at all. If I had only know I would have paid alot more attention in school and taken college bound courses.
thanks for your help and God Bless

Click here to see answer by Mathtut(3670) About Me 
Question 181299: Is -1 a solution of 4square -1=4y + 3 ?
I have trouble working these I do understand you have to do to the same side as you do to the other. please understand I am a 40 year old going back to school and never had algebra in high school at all. If I had only know I would have paid alot more attention in school and taken college bound courses.
thanks for your help and God Bless

Click here to see answer by solver91311(24713) About Me 

Question 181307: -5/6=x -1/4

-1/21=m+ 2/3

Click here to see answer by eperette(173) About Me 

Question 181430: How do you Solve: 8*2-4/9+2=6?
Click here to see answer by Alan3354(69443) About Me 

Question 181432: How do You solve: 9-9*2+1=8?
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Question 181432: How do You solve: 9-9*2+1=8?
Click here to see answer by stanbon(75887) About Me 

Question 181431: Jim works 5 days a week for 48 weeks a year how many days does he work in one year?
Click here to see answer by Alan3354(69443) About Me 

Question 181434: How do you solve:6*7-3*4+1=27?
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Question 181615: What factors do 18 and 24 have in common
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Question 181757:
Click here to see answer by Mathtut(3670) About Me 

Question 181864: Im trying to help son with homework. He says my answer is wrong. Please help.
Factor: x(x+2)+(x+2)
Thanks for your help.

Click here to see answer by Alan3354(69443) About Me 

Question 182546: Explain how we evaluate an algebraic expression for given values of the variables. How would we evaluate the expression "3x - 4y + 9" when x = 2 and y = 5?
thank you.

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

Question 182652: t-6 for t=2
Click here to see answer by Mathtut(3670) About Me 

Question 182918: 1.
Simplify the algebraic expression
2x - 3y - 7y + 4x - 5
and evaluate it for x = 10, y = 4.
Identify the variables, constants, and coefficients in the simplified expression.

Click here to see answer by solver91311(24713) About Me 

Question 183548: W/2=negative 24

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

Question 183742: Find an expression in terms of (x) for 150% of 4y+6 if (x) is 40% of 2y+3.
I am so lost on this one.

Click here to see answer by math_il(6) About Me 

Question 184494: -3-4(t-5)=-2(t+3)+11
0.08x+0.5(x+100)=73.2

Click here to see answer by checkley77(12844) About Me 

Question 185232: (12y +4x)+(15x+5)
Click here to see answer by feliz1965(151) About Me 

Question 185319: two trains leave at the same time from stations that are 60Km apart. the train travel towards each other, one at 55 Km/h and the other at 65 Km/h. At the same time a bee flying at a constant rate of 80 Km/h starts at the front of one train, flies to the front of the other train, inmediately turns and flies back to the front of the first train, and so on.When the two trains meet, what is the total distance that the bee will have flown?
Click here to see answer by Alan3354(69443) About Me 

Question 185857: -7 - 8 + 5 + (-2) - 6 = ?
I tried to do this problem but I'm not confident that I'm doing it correctly. Please show your work so I can better understand how to solve it.
Thank you

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

Question 185981: I realize some of these look easy but when you haven't had algebra for so long it looks hard to me/ I also appreciate your help, without you guys I would be Sc-----.
Please evaluate the following and if so can you explain your steps.
X^2 -5X + 7 when X = -2

Click here to see answer by ptaylor(2198) About Me 

Question 186318: 32/4+16-4*3=4
This problem must be solved using only 1 set of parenthesis.
Everyone in my family has tried and we can't get it.

Click here to see answer by scott8148(6628) About Me 
Question 186318: 32/4+16-4*3=4
This problem must be solved using only 1 set of parenthesis.
Everyone in my family has tried and we can't get it.

Click here to see answer by nerdybill(7384) About Me 

Question 188253: The product of the sum of twice a number and three and two more than the number
Click here to see answer by Alan3354(69443) About Me 

Question 188454:
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Question 188575: please help with this problem that contains parentheses. please solve

(5+4b)^2

thanks

Click here to see answer by Mathtut(3670) About Me 

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