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

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 Algebra: Evaluation of expressions, parentheses Solvers Lessons Answers archive Quiz In Depth

 Question 42729: How do I evaluate the following expression? -5-10/2*-11 I did the following 10/2=5*-11=-55 -55-5=-60 Where did I go wrong? Click here to see answer by Nate(3500)

 Question 42728: I am trying to figure out how to evaluate the following expression: 2-(12/(-2+(2*2))I worked the problem by: -2+4(parenthesis) 12/2=6 -2-6=8 Where aam I going wrong? Click here to see answer by Nate(3500)

 Question 42989: 6*5+2-24 divded by 4*2 Click here to see answer by aaaaaaaa(138)

 Question 43136: how to solve for, t 5t, for t = 3 Click here to see answer by psbhowmick(529)

 Question 43382: Solve for R: 1/R = 1/A + 1/B I thought I had this worked out, but was not sure I could do what I did. I multipled both sides of the equation by 1/1 which allowed me to end up with R = A + B. Can this be correct? What did I do wrong? John Click here to see answer by psbhowmick(529)

 Question 43529: Can someone double check my answer please? Evaluate the following expression and round to the nearest tenth. x = 9.69 y = -8.02 My options are: A)-30.41 B)49.8 C)20.58 D)17.71 Click here to see answer by checkley71(8403)

 Question 43654: Evaluate |-30|x|1/5-1/3|. Thank you for your help! Click here to see answer by tutorcecilia(2152)

 Question 44076: I'm trying to refresh myself, but don't know how to start. 1. 1/3 +2 2. (t-3)(t + 5)=9 3. (x-3)^2 + (x+2)^2=17 4. a^3 +3a^2 -25a = 75 Click here to see answer by adamchapman(301)

 Question 44098: I need some help on this problem: I need to evaluate: |111| (I think it means a total of one-hundred eleven not 3 ones) what do you think? Thanks Click here to see answer by adamchapman(301)

 Question 44342: derrik and samantha are sellin tickets for their school musical. floor seats cost \$7.50 and balcony seats cost \$5. samantha sells 60 floor tickets and 70 balcony seats, derrik sell 50 floor seats and 90 balcony seats. evaluate the expression to determine how much they collected. thank you Click here to see answer by Nate(3500)

 Question 44344: 4m-m-m Click here to see answer by fractalier(2101)
 Question 44344: 4m-m-m Click here to see answer by Nate(3500)

 Question 44612: I need some help on this problem. I have gotten two different responses and I am not sure which is correct. I need to WRITE 30,672 in expanded form. Thanks, Sher Click here to see answer by stanbon(57960)

 Question 44889: i just don't understand the problems that i am suppose to do and i think is very hard for me,so can you please help me? Click here to see answer by atif.muhammad(135)

 Question 45166: help.. I got this wrong,and im totally lost.. state each of the following systems by using either addition or substitution.If a unique solution does not exist,state whether the system is dependent or inconsistent. 10x+ 2y =7 y= -5x+ 3 Click here to see answer by Earlsdon(6294)

 Question 45385: Subtract (9z-5/8) from (z+7/8) I got z-3/16 Is this correct? Thanks! Click here to see answer by rapaljer(4667)

 Question 45395: 4(5x+1)+7(x-5) Click here to see answer by Nate(3500)

 Question 45679: Can someone help me with this problem? I need to find the GCF (greatest common factor) for each groups of numbers: 36, 54, and 180 Thanks, Sher Click here to see answer by stanbon(57960)

 Question 45859: Can someone help me on this? I need to evaluate: |4| + |-3| Thanks, Lyn Click here to see answer by Nate(3500)

 Question 45860: Can someone help me here? I need to represent each quantity with a real number: A country exported \$60,000,000 less than it imported, creating a negative trade balance. Thanks, Lyn Click here to see answer by AnlytcPhil(1278)

 Question 45827: please help! Question: Determine the standard of the equation of the line that contains (3,-5) and (9,2)? Click here to see answer by checkley71(8403)

 Question 46261: Hello, is *c* the correct answer here? Which expression represents an example of the distributive property? (a) 2(x + 3) = 2x + 5 (b) 2(x + 3) = 2x + 6 (c) 2(x + 3) = 2x + 23 (d) 2(x + 3) = 2x + 3 If I got it wrong can you tell me which is right and why? Thank you! Click here to see answer by Earlsdon(6294)

 Question 46534: This is the exact question: Express the product of a number increased by 15, and the number -8 This is what I did: 2.2.2.2.2.2.2 . 2.2.2.2.2.2.2.2= 2^7 . 2^8 = 2^7+8 = 2^15 AND 5^-4 . 5^4 = 5^-8 Is that right, and does the question sound like they want me to actually work the problem I created? Thank you! Click here to see answer by Earlsdon(6294)

 Question 46589: Can someone help me on this? The kinetic energy of a particle of mass m is found by taking one-half of the product of the mass (m) and the square of the velocity (v). Write an expression for the kinetic energy of a particle. Thanks, Sher Click here to see answer by Nate(3500)

 Question 46588: Could someone help me on this? It is estimated that the Earth is losing 4000 species of plants and animals every year. If S represents the number of species living last year, how many species are on Earth this year? Thanks, Sher Click here to see answer by Nate(3500)

 Question 46587: Can someone help me on this? I need to write the following phrases, using symbols: The quotient when 3 more than a number is divided by 3 less than that same number. Thanks, Sher Click here to see answer by josmiceli(9817)

 Question 46586: Can someone help me on this? I need to write the following phrases, using symbols: The sum of m and n, divided by the difference of m and n Thanks, Sher Click here to see answer by Nate(3500)

 Question 46637: Can someone help me on this? Suppose that the temperature outside is dropping at a constant rate. At noon, the temperature is 70 degrees F and it drops to 58 degrees F at 5:00 P.M. How much did the temperature change each hour? Thanks, Lyn Click here to see answer by checkley71(8403)

 Question 46816: Can someone help me on this problem? A triangle has sides 3x + 7, 4x - 9, and 5x + 6. Find the expression that represents its perimeter. Thanks, Sher Click here to see answer by tutorcecilia(2152)

 Question 46812: Can someone help me on this problem? At 7 A.M., the temperature was -15 degrees F. By 1 P.M., the temperature had increased by 18 degrees F. What was the temperature at 1 P.M.? Thanks, Sher Click here to see answer by stanbon(57960)

 Question 46810: Can someone out there help me with this problem. I have put this problem through twice and havn't gotten a response. I need to insert grouping symbols in the proper place so that the given value of the expression is obtained. 5 - 3 . 2 + 8 . 5 - 2; 28 Thanks, Sher Click here to see answer by stanbon(57960)

 Question 46807: I need some help on this problem. I have put this problem through 2 times before but havn't gotten a response. I need to evaluate the following expression: [(2 + 3)^2 - 4 . 5] + 7 Thanks, Sher Click here to see answer by adamchapman(301)

 Question 47016: 3ab^2+5a^2b-1 when a=2 and b=-2 Click here to see answer by venugopalramana(3286)

 Question 47104: -3 - (-4x)= -4x + 5 Click here to see answer by tutorcecilia(2152)

 Question 47108: Perform the indicated operation and expression lowest terms. Click here to see answer by tutorcecilia(2152)

 Question 47224: Can someone help me on this problem? I need to evaluate the expressions if a = -2, b=5, c= -4, and d=6 b^2 - 3bc + c^2 Thanks, Lyn Click here to see answer by checkley71(8403)

 Question 47393: I need some help please 5-1(2X+3)=-2(4+X)) Click here to see answer by checkley71(8403)

 Question 47389: 5-1(2x+3)= -2(4+x) This question is for no solutions and all real numbers Click here to see answer by checkley71(8403)
 Question 47389: 5-1(2x+3)= -2(4+x) This question is for no solutions and all real numbers Click here to see answer by tsmith5651(7)