Questions on Algebra: Operations with Signed Numbers answered by real tutors!

Tutors Answer Your Questions about Signed-numbers (FREE)

Question 200565: I am trying to figure how to do number 7 on page 60... i seem to be doing something wrong.... i have the answer but i just cant get it.. i just keep getting something else.. please help thank you...
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Question 200699: simplify 8+2[9^2-4(3-2)^3]
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Question 201081: A question I have is Evaluate:2(2-8) divided by12 divided by 7(3-6)=
Thank you Janet
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Question 201079: Evalute: Evaluate: 2-(3-9)divided by 12-7(4-7)= This is a problem in my Math class I need help with Thank you janet
Click here to see answer by rfer(12662)

Question 201696: Why it is if you multiply two negative numbers the product is positive?
please help me sir/madam as soon as possible,,thank you'',
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Question 201694: Can you give me some proves why does the product of two negative numbers is positive? Could you help me? Thank you in advance,,
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Question 201704: Please give me some proves using the number line why it is if you multiply two negative numbers the product is positive?please help me madam/sir,,please answer my question as soon as possible..thank you..
Click here to see answer by J2R2R(94)

Question 201701: Can you give me some proves using the Saint George's cross,why it is if you multiply two negative numbers the product is positive?please help me sir/madam,,thank you..
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Question 201691: Can you give me some proves why does the product of two negative numbers is positive?
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Question 201689: In multiplication of signed numbers,why it is if you multiply two negative numbers the product is positive?
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Question 201774: Using number line,how to multiply two negative numbers?please help me sir,,thank you..
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Question 202972: -3.6157/0.0865
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Question 203974: use the digits 1 thru 9 in orde. insert operation signs and grouping symbols to get a value of 100.....
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Question 204570: Perform the operation and write the result in standard form. 10i-(3+sqrt(-25))
Click here to see answer by ankor@dixie-net.com(15656)

Question 205215: Jill asks each of her classmates to choose a number, then multiply the number by –3, add 2 to the product, multiply the result by –2, and then subtract 14. Finally, each student is asked to divide the result by 6 and record the answer. When Jill gets an answer from a classmate, she just adds 3 to it in her head and announces the number each classmate originally chose. How did Jill know to add 3 to each answer.
Click here to see answer by solver91311(16897)

Question 207272: I need help in understanding the steps to complete this problem
4x+6y=24
2x+3y=12
Click here to see answer by J2R2R(94)

Question 207375: 4 + 3(15-2 to the 3rd power) can you help me with this problem
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Question 207373: hi can yoh help me with this problem ? 4 + 3 (15-2 to the 3rd power)
Click here to see answer by Alan3354(30993)

Question 203138: clearly explain the use of pro numerals and explain how to choose pro numerals for various quantities of food in the one question
Click here to see answer by mickclns(59)

Question 207592: Please help me solve these three math problems. I am taking Math0099. These are math question that is asked from the instructor of this math class. I really appreciate your help in solving these problems. I have tried these question twice, and still can't get them right.
1.8+2[(16/4)+7] needs to be in parentheses.
2.(8/2)+3(5-1)^2 needs to be in parentheses.
3.-9-7/8x32+5 needs to be exponent.
the / symbol is a divide sign, but I am having problems getting it right on my computer. if you put the dot over dot. I will no exactly what you mean. Thanks
Click here to see answer by rfer(12662)

Question 208507: factor 20x-44
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Question 209066: 5 x (-25 + -15) - 3[ 7 x ( 5 + 3) + 10]

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Question 209138: Can you please help me out with my homework? I need help with a couple questions. Here's one,(-3 divided by 1 1/2)2. Do you think you get it,And help me out alittle bit?

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Question 209662: what is the expression of two fifths the cube of a number?

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Question 209662: what is the expression of two fifths the cube of a number?

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Question 209620: simplify (-8q^3r^4s^2)^2=
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Question 210258: I need help on how to solve these questions.
Also
Finally

Thanks so much. Also i would like to learn the procedure to learn how to solve this.
Click here to see answer by jim_thompson5910(28595)

Question 210486: use each # once to make equation correct 2,3,4,6
(_-_)+_x_=11
_/_+_x_=20

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Question 157067: just a test of the website that i wanted to do, find the quotient of -132
Click here to see answer by Alan3354(30993)

Question 210890: Using only the digits 1, 2, 3, 4 one time each, what would give me an answer of 100?
Click here to see answer by nyc_function(2733)

Question 211399: -( (-2)^3 -3)^2 + 2 * (-4)
Click here to see answer by rapaljer(4667)

Question 211621: Using all digits 1 thru 9, in order. Add operation signs and grouping symbols to make the numbers sum 100.
Click here to see answer by ankor@dixie-net.com(15656)

Question 212334: Insert the correct operation into the following set of numbers to equal 34 in the boxes below. Fill in the operations that make this statement true. Each operation can be used only once.
81 ____ 21 _____ 3 ____ 7 ___ 2 = 34
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Question 212732: How to solve
48 divided 4x5 - 2x5 =
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Question 213750: Insert operation symbols to make equation true:
8⁪2⁪10⁪2=11
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Question 214883: Insert parenthesis operation signs and exponents to make this statement true : 3 -2 7=4
Click here to see answer by Edwin McCravy(8909)

Question 215863: (c+2) +8=4
Can you please help me I'm been home with swine flu for the last 5 days, im in the 8th grade taking algebra please help
Click here to see answer by checkley77(12569)

Question 215909: z+ (-22) = -96
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Question 216246: one fifth of a number is 12. find the number
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Question 216267: 2x+3
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Question 216332: Help me solve -13 + T = 10 Is it -13 +13 +T = 10 + 13 = 23
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Question 216578: 6+(-2)-10-(-2)
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Question 216665: Given 3 numbers: 5 5 5 . Using only mathematical operations and using each number only once, get the answer 24
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Question 216665: Given 3 numbers: 5 5 5 . Using only mathematical operations and using each number only once, get the answer 24
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Question 216813: 3x+15 over 5 is equal to 2x-1 solve for x
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