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

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 Algebra: Real numbers, Irrational numbers, etc Solvers Lessons Answers archive Quiz In Depth

 Question 620766: Show that one and only one out of n, n+2, n+4 is divisible by 3, where n is any positive integer Click here to see answer by ewatrrr(10682)

 Question 621658: what is real number? what is complex number? what is rational number? what is irrational number? what is whole number? what is positive and negative numbers? what is decimal numbers? pls im hoping you can answer it im very slow about algebra thank you.. Click here to see answer by lynnlo(4155)

 Question 621660: what is real number? what is complex number? what is rational number? what is irrational number? what is whole number? pls im hoping you can answer it im very slow about algebra thank you.. Click here to see answer by lynnlo(4155)

 Question 622260: "Find the real values of y for which the given expression is undefined" Click here to see answer by lynnlo(4155)

 Question 622019: the record high temperature is 95.6 above zero. what is the corresponding number? Click here to see answer by richard1234(5390)

 Question 623372: 9X3/-21+-13/ the / is suppose to be a straight up and down bar. Please show your work so that I can understand how you got the answer. Thank you very much in advance. Click here to see answer by Alan3354(30993)

 Question 623769: If the numbers 70 and 105 are both multiples of a prime number "n", how many possible values are there for "n"? Click here to see answer by jim_thompson5910(28545)

 Question 624925: can a real number include irrational numbers? explain Click here to see answer by jim_thompson5910(28545)

 Question 625620: is some real numbers are not rational numbers? Click here to see answer by reynard2007(52)

 Question 625831: the circumference of a compact disk is computed by using the diameter measured to the nearest te nth of a centimeter and 3.14 as an approximation of pie. which subset of numbers corresponds best to this situation? rational numbers integers- this was my answer real numbers whole numbers can you explain this, I thought irrational numbers were those that represented pie. Click here to see answer by stanbon(57290)

 Question 627293: what number is 1/3 of the way from 4/5 to 5/6 Click here to see answer by ewatrrr(10682)

 Question 627574: find a rational number between 1/4 and 3/5? Click here to see answer by ewatrrr(10682)

 Question 627736: I need to express the quanity as a positve or negative number. The question is......during a game a person wins 450 points. What is the corresponding number for this sentence. Click here to see answer by jim_thompson5910(28545)

 Question 627835: Is this statement true or not? The set of even integers is closed under subtraction? Why or why not? Please help me im having hard time :( Click here to see answer by reviewermath(507)

 Question 627836: How can I prove this? 4. If a=-a then a=0 1.(a raise to negative 1) raise to -1=a 2. (a/b) raise to -1= b/a 3.abc=0 -> a=0 b=0 or c=0 Thank you so much for helping :) Click here to see answer by solver91311(16877)

 Question 628118: Hi I am so lost and cant figure this out please help me!!! Find a rational number, r, that satisfies the following conditions. 3 separate answers. (a) r^2 < r (b) r^2 = r (c) r^2 > r Click here to see answer by mananth(12270)

 Question 631185: the sum of two consecutive integers os -373. find the larger integer Click here to see answer by Alan3354(30993)

 Question 631228: How many positive integers less than 50 are multiples of 4 but not multiples of 6? I get 6, but the answer is 8. Please explain. Thank you Click here to see answer by jim_thompson5910(28545)

 Question 631811: if w,x,y,and z are consecutive integers and if w>x>y>z, then (w-z)(y-8)+x-z=? I keep getting -5 for the answer nit matter what numbers I plug in. The answer is -1. Thank you Click here to see answer by KMST(1868)

 Question 631948: HEY GOING BACK TO SCHOOL AFTER A LONG TIME... I AM SO CONFUSED ON WHEN TO ADD AND SUBTRACT POSITIVE AND NEGATIVE NUMBERS... CAN YOU HELP SONJA 404 603 6730. THANKS Click here to see answer by Edwin McCravy(8901)

 Question 632152: is the squre root of 42 a rational or irrational number? Click here to see answer by jim_thompson5910(28545)

 Question 632433: find an irratational number between .757575... and .767676... Click here to see answer by KMST(1868)

 Question 633229: Write the rational number as the quotient of two integers in simplest form. 0.7777777777... Click here to see answer by stanbon(57290)

 Question 633613: Armando collects baseball cards. He currently has 48 cards, and buys 5 new cards a week. How many cards will Armando have in 10 weeks? Click here to see answer by ikeoddy(3)