Questions on Algebra: Distributive, associative, commutative properties, FOIL answered by real tutors!

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Question 1092407: what two numbers multiply to -315 and add upto 14
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Question 1092497: 4(1/2 +3/4) + (-2)=
Click here to see answer by josgarithmetic(39613)

Question 1092745: prove that 0=1.
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Question 1092746: prove that i=0 does not implies 1=0.

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Question 1093344: Hi!
Can you help me solve this problem?
Two numbers differ by 57. Their sum is 183.Find the #
Click here to see answer by josmiceli(19441)

Question 1093414: 2x+6�x squad+x-6
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Question 1093747: I need to simplify 7+2[3(x+1)-2(3x+1)]
Click here to see answer by addingup(3677)

Question 1093747: I need to simplify 7+2[3(x+1)-2(3x+1)]
Click here to see answer by MathTherapy(10549)

Question 1093963: Please help me to SIMPLIFY this equation:
4x^2-16x�2x^2+6x-56
Click here to see answer by Alan3354(69443)

Question 1094794: State which is greater without evaluating A or B:
A=20000(1+2+3+...+20001) or
B=20001(1+2+3+...+20000)
Click here to see answer by Alan3354(69443)

Question 1094794: State which is greater without evaluating A or B:
A=20000(1+2+3+...+20001) or
B=20001(1+2+3+...+20000)
Click here to see answer by ikleyn(52748)

Question 1095109: Special solution: Find one value for a and one value for b so that there are no values of x that makes the equation true.
-3(2x-1)=ax+b
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Question 1095119: Speacil souliton: Find one value for a and one value for b so that there are infinitely many values of x that makes the equation true. Type the equation & each line of work in order to confirm the number of solutions.(infinite solution)-3(2x-1)=ax+b
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Question 1095226: 69x-17
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Question 1096288: 4�9�50 simplify and justify
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Question 1096940: Hi,
I hope you can help. You may find this rather odd, but it's something that's been bugging me. I recently bought Algebra for Dummies Part 1 by Mary Jane Sterling and in the introduction where she talks about "Figuring Out Factoring" (I think know what factoring is), she says "It's where expressions are changed from addition and subtraction to multiplication and division", and no matter how I think about this, it doesn't make any sense, and I feel that I'm missing something very basis. Can you shed any light on what she could mean here?
Kind regards
Peter
Click here to see answer by ikleyn(52748)

Question 1096929: x P(X=x)
0 0.4
5 ?
10 0.3
fill in the missing number
calculate mean and variance

Click here to see answer by Fombitz(32388)

Question 1097237: 1/5 (-5a +20b) - 1/2(2b-6a)
Every source I find has the second a value being positive after distributing the half. They say it as b + 3a, and I always get it as b - 3a. How does 1/2 (2b - 6a) become b + 3a? How does the - get changed to a plus? I get -4a + 3b whenever I finish the problem, but every source I find says the answer is 2a + 3b. The sources are this website, mathpapa.com, and my in-class answer sheet by my teacher. Thank you.
Click here to see answer by Boreal(15235)

Question 1097363: Why is the last term (2+√5)(2-√5) = +5
3(2−√5)/(2+√5)(2−√5)=6−3√5/4+√25−√25+5
Thak you :) studying for CET
Click here to see answer by Boreal(15235)

Question 1097363: Why is the last term (2+√5)(2-√5) = +5
3(2−√5)/(2+√5)(2−√5)=6−3√5/4+√25−√25+5
Thak you :) studying for CET
Click here to see answer by greenestamps(13195)

Question 1097836: Lisa and John paid 75 cents each to enter the carnival. Lisa bought 8 ride tickets for c cents each. John bought 6 ride tickets for c cents each.
Write an expression for the situation and simplify.
Please help me solve this.
I attempted to figure this out and got 8c + 6c = 75; c=5 but I do not think I am correct.
Click here to see answer by josgarithmetic(39613)

Question 1097937: 28+7g rewrite it in distributive
Click here to see answer by rothauserc(4718)

Question 1098026: What is the property of 11(2d + 9) = 22d + 99?

Click here to see answer by ikleyn(52748)

Question 1100914: The result of multiplying a number by 3 and subtracting 5 is the same as doubling the number and adding 9 what is the number
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Question 1101107: y= 3(x+5) (x-2)
Can you explain this to me? They want the equivalent
Click here to see answer by josgarithmetic(39613)

Question 1101261: find values for a,b,c,and d so that the function f (x) =ax� + bx� + cx + d has a relative maximum at (-2,6) and a relative minimum at (2,-10)
Click here to see answer by Boreal(15235)

Question 1101321: if m^2 + n^2 = 18 and mn = 7, what is (m-n)^2?
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Question 1101320: if (a + b)^2 = 37 and ab = 5, what is a^2 + b^2?
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Question 1101319: Which is a factor of 2x^2 - x - 1?
Click here to see answer by Alan3354(69443)

Question 1101322: if (ax + b)^2 = 16x^2 + mx + 49 for all values of x, what is the value of m if m > 0?
Click here to see answer by ikleyn(52748)

Question 1101655: Write two expressions of a solution of 41
Click here to see answer by Edwin McCravy(20054)

Question 1102000: Use an associative property to write the expression.
(3+7)+4
Click here to see answer by josgarithmetic(39613)

Question 1102000: Use an associative property to write the expression.
(3+7)+4
Click here to see answer by Edwin McCravy(20054)

Question 1101991: 9C3/12C3
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Question 1101991: 9C3/12C3
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Question 1102084: Number of Production Workers/Average Total Units Produced Daily
7 / 113
/ 200

1. Corwell Inc. wants to increase production of a new product. The chart above shows the number of units their current staff produces. At this rate, what is the minimum number of workers they would need to produce at least 200 units daily?
Click here to see answer by josgarithmetic(39613)

Question 1102085: Number of Production Workers
Click here to see answer by richwmiller(17219)

Question 1102540: You are trying to create a budget to optimize the use of a portion of your disposable income. you have a maximum of 15,000 per month to be allocated to food, shelter and entertainment. the amount spent on food and shelter combined must not exceed $10,000. Thee amount spent on shelter alone must not exceed $7,000. Entertainment cannot exceed $3,000 per month. Each dollar spent on food has a satisfaction value of $2, each dollar spent on shelter has a satisfaction value of 3, and each dollar spent on entertainment a satisfaction value of 5. Assuming a linear relationship, set up the equation that can be solved to maximize the profit.
Click here to see answer by ikleyn(52748)

Question 1104012: What is the answer to 8+(7+x) I am VERY confused.

Click here to see answer by Fombitz(32388)

Question 1104012: What is the answer to 8+(7+x) I am VERY confused.

Click here to see answer by Alan3354(69443)

Question 1104180: A cube has side length (2√5-3) cm. What is its volume?
Click here to see answer by math_helper(2461)

Question 1104947: If the solutions to the two equations below are the same, find the value of k, if x,y ϵ z. ,
Click here to see answer by ikleyn(52748)

Question 1105370: Divide 4x2 � 4y + 16 by y + 3
Click here to see answer by josgarithmetic(39613)

Question 1106725: 4(8x-3)
Click here to see answer by Alan3354(69443)

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