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Author Topic: need help with a question. thnx  (Read 803 times)
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mayday295
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« on: June 13, 2008, 01:24:55 PM »
The cost of a jacket is increased from $75 to $80. What is the percent of increase?


if any one knows please reply, your answers are either.A)6.25%
or
B)6 2/3%
 Undecided
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Cawagula
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« Reply #1 on: June 13, 2008, 01:36:09 PM »
Quote from: mayday295 on June 13, 2008, 01:24:55 PM
The cost of a jacket is increased from $75 to $80. What is the percent of increase?


if any one knows please reply, your answers are either.A)6.25%
or
B)6 2/3%
 Undecided

Answer is B.

$75 * .0625 = $4.69
$75 + $4.69 = $79.69
Therefore A is wrong

$75 * .066666 = $4.999995 rounds up to $5
$75 + $5 = $80

Cheesy
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mayday295
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« Reply #2 on: June 13, 2008, 03:49:00 PM »
ahhh I see what I missed, I forgot to move the decimal on the percent. thnx!
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Cawagula
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« Reply #3 on: June 13, 2008, 03:59:53 PM »
Yep, no problem mate.
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benny
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« Reply #4 on: June 15, 2008, 04:47:31 PM »
i dont get that at all
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mayday295
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« Reply #5 on: June 17, 2008, 07:08:36 PM »
Q17        Solve the inequality.   -5 ≤ 2 - x ≤ 7  i want to challenge the teachers answer on this but want to make sure im right, so if someone could rightly solve this inequality that would be great thnx.
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« Reply #6 on: June 20, 2008, 02:38:27 PM »
Quote from: mayday295 on June 17, 2008, 07:08:36 PM
Q17        Solve the inequality.   -5 ≤ 2 - x ≤ 7  i want to challenge the teachers answer on this but want to make sure im right, so if someone could rightly solve this inequality that would be great thnx.
-5 ≤ x ≤ 7
Which means that x can be any number between (and including) -5 and 7 and the inequality will still be true.
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mayday295
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« Reply #7 on: June 21, 2008, 06:23:18 PM »
Thanx i had solved it shortly after posting, but everybit helps, thats all the help i need for a while.
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