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# Forum: Pre-Algebra

Questions from "Pre-Algebra" classes.

1. ### Sticky: Read Before Posting

• Replies: 0
• Views: 16,331
Ted
11-14-2007, 09:47 PM
1. ### Help me solve this (word problem)

• Replies: 2
• Views: 194
07-10-2018, 01:42 PM
2. ### question on percentage distribution: distributing $10 between 3 people A, B, and C • Replies: 7 • Views: 486 07-06-2018, 01:10 AM 3. ### How does negative sign turn neg. integer from inside parenthesis to pos.? -(-10) - 1 • Replies: 5 • Views: 340 07-02-2018, 07:07 PM 4. ### how do i calculate 67% of an amount, only knowing the 67% result? • Replies: 2 • Views: 242 06-26-2018, 09:29 AM 5. ### Is this interest prob. not solvable? Investment doubles in 10 yrs; find time to tripl • Replies: 2 • Views: 256 06-24-2018, 10:33 AM 6. ### Factors: A teacher writes a number on a whiteboard. He then produces a hat.... • Replies: 6 • Views: 462 06-23-2018, 05:49 PM 7. ### "Your electricity bill is £122.00 excluding a tariff for the last quarter...." • Replies: 1 • Views: 175 06-22-2018, 12:13 PM 8. ### Percent change: A zoo has 4 giraffes, 3 lions, and 290 animals overall.... • Replies: 5 • Views: 553 06-19-2018, 10:06 AM 9. ### wood chips: 282.8 grams of chips in sample, baked for 1 hr; lost 11 gm water • Replies: 4 • Views: 1,427 06-18-2018, 09:46 AM 10. ### proportion: A survey of car owners showed 5 out of 7 preferred to buy regular gas..." • Replies: 6 • Views: 470 06-17-2018, 09:48 PM 11. ### BEDMAS incl. exponent: 9 x 6 / 2^3 / 4 = ...? • Replies: 16 • Views: 793 06-11-2018, 01:33 PM 12. ### Simplification of 4[(.5)^4 * (.6)^3]+4[(.5)^4 * (.6)^3 * (.4)] = 4(.3)^3 * (.7) • Replies: 4 • Views: 551 05-28-2018, 05:30 PM 13. ### Help translating word problem: "Carlos began with twice as much money as David had." • Replies: 4 • Views: 648 05-17-2018, 08:07 PM 14. ### How much simple interest would be paid on a loan of$1950 at 8.1% for 70 months?

• Replies: 3
• Views: 1,403
04-16-2018, 06:25 PM
15. ### Can somebody help me w/ "7/10 of the boys in a marathon race were Chinese..."

• Replies: 4
• Views: 875
04-14-2018, 05:22 PM
16. ### Please help: Sally is paid 6% on 1st \$750K of monthly sales, 8% after that

• Replies: 4
• Views: 639
04-12-2018, 06:38 PM
17. ### Stuck on a percentage problem (example: (y-a%)+b%=X)

• Replies: 1
• Views: 508
04-11-2018, 09:24 AM
18. ### Confusing problem, not sure how to define (repetition of musical pieces)

• Replies: 5
• Views: 907
03-28-2018, 07:38 AM
19. ### 42 km Course, 0.4 km Travelled, How Much Time Has Passed?

• Replies: 4
• Views: 849
03-23-2018, 03:28 PM
20. ### Solve Y= (4th root of x) +1

• Replies: 4
• Views: 840
03-13-2018, 08:02 PM

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