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# Forum: Pre-Algebra

Questions from "Pre-Algebra" classes.

1. ### Sticky: Read Before Posting

• Replies: 0
• Views: 17,126
Ted
11-14-2007, 09:47 PM
1. ### Why a3 + b3 + c3 = (a+b+c)3 - 3ab(a+b) -3bc(b+c) -3ac(a+c) - 6abc?

• Replies: 2
• Views: 216,815
11-27-2014, 07:08 AM
2. ### Linear Cost Function

• Replies: 2
• Views: 57,619
06-20-2011, 06:56 PM
3. ### factoring trinomials: x^2 + 6x + 8

• Replies: 3
• Views: 45,924
09-24-2006, 11:23 PM
4. ### acceleration: how far will the car travel in 10 seconds?

• Replies: 3
• Views: 31,290
06-16-2006, 05:42 PM
5. ### finding the relationship between x and y values

• Replies: 3
• Views: 28,072
06-25-2009, 09:04 PM
6. ### Find length of diagonal across 8.5-by-11 inch sheet

• Replies: 7
• Views: 26,003
01-31-2007, 09:12 AM
7. ### Rounding mixed numbers to the nearest whole number

• Replies: 3
• Views: 23,418
02-28-2007, 10:57 AM
8. ### How do I work out 9 to the power of 1/2?

• Replies: 2
• Views: 23,143
12-15-2013, 05:33 PM
9. ### Find the Slope and y-intercept of the line y = -x

• Replies: 4
• Views: 21,528
02-05-2007, 12:47 AM
10. ### what does 'a product of the same factor' mean?

• Replies: 4
• Views: 20,898
09-25-2007, 03:30 PM
11. ### Simple Discount Notes

• Replies: 1
• Views: 20,617
09-09-2006, 12:34 AM
12. ### expression for 29 using 1, 2, 3, 4, *, /, +, -, powers

• Replies: 15
• Views: 19,082
09-11-2018, 10:51 PM
13. ### A man has Rs. 480 in the denominations of one-rupee notes, five-rupee notes and....

• Replies: 1
• Views: 17,315
06-11-2015, 08:49 AM
14. ### What is a 'verbal model', and how would one be used?

• Replies: 1
• Views: 17,003
09-08-2008, 06:38 PM
15. ### Word prob: If you divide by 2, 3, 4, 5, or 6, the remainder

• Replies: 2
• Views: 14,846
09-19-2006, 10:01 AM
16. ### Sum of numbers is 2, product is 3; find sum of reciprocals

• Replies: 5
• Views: 12,826
01-29-2017, 02:57 PM

• Replies: 13
• Views: 12,640
02-27-2013, 12:01 PM
18. ### 1/2x+2/3x+18=15 and 3(x²-x)-4(x²+x)=-3(x+1)-4(x+)

• Replies: 10
• Views: 12,174
03-28-2009, 01:18 PM
19. ### [MOVED] simplifying square roots: factoring numbers

• Replies: 25
• Views: 10,684
08-16-2006, 09:10 AM
20. ### If radius increased by 25%, find percent increase in area

• Replies: 2
• Views: 9,973
09-24-2008, 12:08 AM

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