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

Tutors Answer Your Questions about expressions (FREE)

Question 96640: Can you please help me solve my problem?
{8*2-(3+9)]+[8-2*3]
Click here to see answer by checkley71(8403)

Question 96654: "What is the number of slices of pizza left from an 8-slice pizza after you have eaten some slices?". i need an expression for this word problem please.
Click here to see answer by ptaylor(2198)

Question 96697: write an expressin for each quantity.
1. the value in cents of 5 quaters.
2. the value in cents of q quaters.
3. the number of months in 7 years.
4. the number of months in y years.
5. the number of gallons in 21 quarts.
6. the number of gallons in q quarts.
Click here to see answer by checkley71(8403)

Question 96872: Simplify 7(8a-4)+2a
Is this answer right? 56a-28+2a = 58a-28
Click here to see answer by jim_thompson5910(35256)

Question 96924: I can not figure out this equation: . Please help me.
Click here to see answer by jim_thompson5910(35256)

Question 96924: I can not figure out this equation: . Please help me.
Click here to see answer by stanbon(75887)

Question 97378: i want to know how do you do this problem having troble with math homework please help me!
x+3(2x-5)
Click here to see answer by jim_thompson5910(35256)

Question 97433: I need to find the value of the expression to 6.8 + 1 1/5 Can you help me please?
Click here to see answer by checkley71(8403)

Question 97445: It is a crossword puzzle. The question is "To find the value of an algebraic expression by substituting a number for each variable and simplifying." The answer has 8 letters and the 4th letter is "L"
Click here to see answer by mathslover(157)

Question 97620: What does this statement means? Write an expression for the value of a three-digit number whose hundreds, tens, and units digits are x,y,and z respectively.
Click here to see answer by checkley71(8403)

Question 97899: 36s,when s=102
Click here to see answer by edjones(8007)

Question 97999: I would like to know how you are supposed to solve this?
Click here to see answer by elima(1433)

Question 98125: Looking for some help on these questions.
2) 9 m + 7 = 3 - 3 m
3) 1/6f - 5 = 1
Could use some help I have no clue. Thank you for your time.
Click here to see answer by checkley71(8403)

Question 98324: Solve: [2x+5y]=[1] for y
[ x+3y] [0]
I hope this made sense. The brackets really encompassed the top and the bottom numbers but I was unable to find brackets that large. Sorry.

Click here to see answer by Nate(3500)

Question 98342: Simplify �(�(�7))
Click here to see answer by checkley71(8403)

Question 98389: what math problem can be made that equals 13 by using all the order of operations.
Click here to see answer by jim_thompson5910(35256)

Question 98456: Insert parentheses to make each pair of expressions equal.
3*8+6squared-8/2=26
Click here to see answer by mathslover(157)

Question 98519: 13 less than two times S
How do I write this in an algebraic equation?
Click here to see answer by stanbon(75887)

Question 98749: Nine more than a number squared is 25. Write an equation that can be used to find the unknown number, y.
(9y)2=25
I am unsure how to solve this problem.

Click here to see answer by stanbon(75887)

Question 98752: During basketball season, emily scored 3 more than twice the number of points kayla scored. emily scored 251 points. write an equation that can be used to find the number of points, k. that kayla scored.
(3x)2=251
(3x) squared=251
Click here to see answer by doukungfoo(195)

Question 98832: Help!!
Son is taking algebra but mom is rusty and can't help much. Please help solve
2(4 - 2r) = -2(r + 5)
Click here to see answer by elima(1433)

Question 98998: ok my question is in the florida pinellas county pre-algebra book page 26 unit 1 chapter 1 section 4 number 20#
it says name the property shown by each statement.
20. 1h=h
I dont understand any part of the question i was able to figure out all of the rest of the questions
they tell me what all the propertys are but none of them even closley realte to this certian question
I asked my mom grandma and everyone the home work is due tommrow I need help plz help me.
Click here to see answer by stanbon(75887)

Question 99145: How do I set up and solve this word problem?
There are 5 times as many 1$ bills as 5$ bills. The entire number of bills is 48. How many 1$ bills are there?
Click here to see answer by Nate(3500)

Question 99167: Evaluate xy/yz if x = 12, y = -5/4, and z = -4/5
Click here to see answer by checkley71(8403)

Question 99290: Please help me with this equation -3-(-1/4)-1/2=
Click here to see answer by edjones(8007)

Question 99288: Please help me with this equation 9+(-10)+(-3)=
Click here to see answer by elima(1433)

Question 99410: nine more than twice a given number
Click here to see answer by math-smartey1029(3)

Question 96506: simplifying the expression
4^5 X 4^7
---------
4^10
Click here to see answer by edjones(8007)

Question 99464: Please help us with this problem: We are stumped -40-(2x+5)=-61 Thank you!
Click here to see answer by doukungfoo(195)

Question 99464: Please help us with this problem: We are stumped -40-(2x+5)=-61 Thank you!
Click here to see answer by edjones(8007)

Question 99501: 6x^2 -5x +1 factoring
Click here to see answer by stanbon(75887)

Question 99493: Thomas is going to make an open-top box by cutting equal squares from the four corners of an 11 inch by 14 inch sheet of cardboard and folding up sides. If the area of the base is to be 80 square inches, then what size square should be cut from each corner?
Click here to see answer by ankor@dixie-net.com(22740)

Question 99594: If a soccer ball is kicked straight up from the ground with an initial velocity of 32 feet per second, then it's height above the earth in feet is given by s(t)=-16t^2+32T where t is time in seconds. Graph this parabola for 0 is less than or equal to t less than or equal to 2. What is the maximum height reached by the ball?
Click here to see answer by bucky(2189)

Question 99986: Will you help me out?
Solve for the variable given.
-3x + 3 + 4x = 0
Click here to see answer by checkley71(8403)

Question 99989: Solve for the variable given.
5(y-2)=4y+8
Click here to see answer by stanbon(75887)

Question 100019: Can someone please help?
(�2a^2 b^3)^2 / (2a^2 b)^3
Click here to see answer by Nate(3500)

Question 100117: Hello, I need you help with one problem. I just don't have a real example.
2x > 6x - 5
-
Thank You,
Click here to see answer by bucky(2189)

Question 100118: Hello, I need you help with one problem. I just don't have a real example.
2x-1 > 6x - 5
-

Thank You,
Click here to see answer by bucky(2189)

Question 100227: If a = -3 and b = 4, evaluate 3a - 4b.
Click here to see answer by tutorcecilia(2152)

Question 100285: I am trying to figure out simplifying expressions like the one in this problem (-3)to the 5th power (numerator) over (-3) to the third power(denominator) and 64a to the seventh power b to the eighth power(numerator) over 8a to the fourth power b to the fourth power(denominator). Sorry, I don't know how to raise the powers above the numbers on the keyboard.

Click here to see answer by tutorcecilia(2152)

Question 100432: 12-4(-8v+17)
Click here to see answer by checkley71(8403)

Question 100432: 12-4(-8v+17)
Click here to see answer by jim_thompson5910(35256)

Question 100443: 3[16-(3+7)divided by 5]
Click here to see answer by checkley71(8403)

Question 100475: Bricklayers use the formula N=7LH to estimate the number of bricks N needed to build a wall of height H and length L.
What is the height of the wall that is 30 feet long and that requires 2310 bricks to build?
Click here to see answer by elima(1433)

Question 100614: A discount store bought 12 dozen radios,each to be sold at $15 above cost. The store sold x of the radios at that price. Each of the remaining radios wassold at $4 below cost. If the store paid $11 for each radio, what was the total income from the sale? (hint: income=sales-cost)
Click here to see answer by checkley71(8403)

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