Questions on Algebra: Real numbers, Irrational numbers, etc answered by real tutors!

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Question 497443: PLEASE HELP WITH THIS WORD PROBLEM...ERIN AND SUSAN BOTH TOOK THEIR DOGS FOR A WALK. TOGETHER THEY WALKED 15 MILES. IF ERIN WALKED 3 MILES LESS THAN SUSAN,HOW FAR DID SUSAN WALK HER DOG?

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Question 497707: can you name the subsets of the real numbers to which each number belongs?
3/4 -8 2pi 45,368 sqrt%287%29 -2/3
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Question 498543: how do you simplify the question 3/4p-1/5r-3/5r-1/2p
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Question 498641: Show that the number is rational by writing it as a quotient of two integers...
-9/14
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Question 498641: Show that the number is rational by writing it as a quotient of two integers...
-9/14
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Question 498490: Hi. what is the two things that i should know most inportantly in irrationl and rational? are there any methods i can remeber to help me?
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Question 499293: Give a counter example to disprove the statement that every counting number is
greater than or equal to the sum of the proper factors.
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Question 499473: What are the differences of Real numbers, irrationals, rationals,integers,whole numbers and natural numbers?
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Question 499715: what is the sum of the first 100 real numbers
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Question 500565: my homework says: in each of the following (a)translate as an expression and (b) translate as an equation or inequality. use x to represent the #.
(a) 12 more than a number
(b)12 is more than a number
what is the difference? idk what to do!!!!!:(

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Question 500607: find the remaining zeros of f.
Degree 6; zeros: -7, 5, 7 - 5i, -5 + i
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Question 500614: determine between which two cosecutivewhole numbers the square root of each number belongs:
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Question 500764: justify and simplify ... 12x- 3 +6x
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Question 500777: simplify
25 times 74 times 2 times 2
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Question 501007: Can you please explain to me what isn't a real number?
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Question 501039: Dear teacher,
I would like to first thank you for answering my question though you don't know me, so thanks anyway!!!!
My question is, is there any way for us students to remember the difference between rational and irrational numbers? Please remember that we would like it to be easy to remember and not complicated.
Thank you teacher again!!!!
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Question 501039: Dear teacher,
I would like to first thank you for answering my question though you don't know me, so thanks anyway!!!!
My question is, is there any way for us students to remember the difference between rational and irrational numbers? Please remember that we would like it to be easy to remember and not complicated.
Thank you teacher again!!!!
Click here to see answer by Theo(13342) About Me 
Question 501135: PLEASE HELP...A FAMILY SPENT $408 ONE MONTH FOR FOOD. THIS WAS 20% OF THEIR INCOME. WHAT WAS THEIR MONTHLY INCOME?
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Question 501135: PLEASE HELP...A FAMILY SPENT $408 ONE MONTH FOR FOOD. THIS WAS 20% OF THEIR INCOME. WHAT WAS THEIR MONTHLY INCOME?
Click here to see answer by guitarheroguy(26) About Me 
Question 501142: PLEASE HELP....MELANIE EARNED $450 IN JANUARY, $320 IN FEBRUARY, AND $665 IN MARCH AS A TUTOR. HOW MUCH MUST SHE EARN IN APRIL IN ORDER TO AVERAGE AT LEAST $500 PER MONTH FOR THE 4 MONTHS FROM JANUARY THROUGH APRIL?
Click here to see answer by josmiceli(19441) About Me 
Question 501279: When a number is decreased by 13 and the result is -2 what is n
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Question 501300: what is the solution to 4{[8(x-3)+9] - [4(3x - 2) + 6] } I allready have the problem done but I want to be sure about it and my result are (32X-52)
THANK YOU VERY MUCH
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Question 501520: simplify expression
square root-36
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Question 502141: R= Real number, I=integers, Q= Rationals, W=whole numbers and Z=irrationals.
True or False
R U Q=Q
Q (intersection upside down U)W=W
Q (subset sideways U)R
I (subset sideways U)Q
I (subset sideways U)(Q intersection R)

I don't know how to do these. Thank you

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Question 502617: having problem with math question 3 examples of a rational real number between 4 and 5
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Question 502963: determine whether each set of numbers is closed under the indicated operation.
1) irrational, addition
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Question 502970: i am having issues figuring out what irrational numbers are. I have a list of numbers and i need to figure out which ones are irrational,
0. 0.4, -square root of 3, square root of 16, and -2 2/3, -pie, 6.9.
i just want to know how to solve it. i looked it up but i dont understand it. thanks
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Question 503196: subtract and simplify 3-z/z-1 - 4z-5/1-z
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Question 503395: hello,I need help in kinds of numbers,converting ratio to a decimal,and converting each number to a fraction in lowest terms.
Hope you can help me:)
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Question 504204: What is the square root of 49?
Like is it irrational or rational? Terminating or repeating decimals? Non-integers or integers? Negative integers or who numbers? Zero or natural numbers?
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Question 504596: Find a degree 3 polynomial with coefficient of x^3 equal to 1 and zeros -3, −4i, and 4i. Simplify your answer so that it has only real numbers as coefficients.
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Question 504598: Two irrational numbers, the product of which is rational number
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Question 504598: Two irrational numbers, the product of which is rational number
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Question 504601: Give example of the following :
1) Two irrational numbers, the product of which is a rational number
2) One rational number lying between 0 and -1
3) A decimal number lying between 0.003 and 0.004.
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Question 504723: Five more than one third of a number is -2. find the number
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Question 504783: what is 2.9 asa quotient of 2 integers.
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Question 505132: What are the classifications for the number -12?
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Question 506087: Helping my daughter with homework and needing help
X-(-9\14)=5\7
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Question 507025: If the fraction 22/7 is the same as pi, how can pi be irrational and 22/7 be Rational?
(I got this wrong on a test)
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Question 507133: The LCM of numbers 15,70,105 is:can you give this anwer?
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Question 507247: Which of the following polynomials is prime over the set of rational numbers?
a.x^2-13x-36
b.x^2-5x-36
c.x^2+15x+36
d.x^2+20x+36
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Question 507533: Can you please help me solve 8w-8-6w=4w-7
here's what I did:
8w-8-6w=4w-7
8w-6w=2w
2w-8=4w-7
-4w -4w
-2w-8=-7
+8 +8
-2w=1
-2w/-2
1/-2
and I got -.5. But when I plugged it in I got -9 not -7.
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Question 507569: Can you help answering this problems?? I'll appreciate it
How can I find the multiplicative inverse of this numsbers??
1.-18
2.-9
3.-1
4.-1/2
4.-3/4
5.-5/9
6.-4(1/3)
7.-2(2/5)
Thank you!!
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Question 507669: what real number family would the square root of 9 be?
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Question 507820: The formula C=2*pi*r relates the radius r of a circle to its circumference C. Solve the formula for r.
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