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April 19, 2014

April 19, 2014

Posted by **Bryan** on Tuesday, July 22, 2008 at 8:54pm.

Cost of item Tax Rate

$500 6%

How do i do this problem?

- Mathmatics -
**Ms. Sue**, Tuesday, July 22, 2008 at 8:56pmMultiply: $500 * 0.06 = tax

Add the tax to the cost of the item to find the total cost.

- Mathmatics -
**Bryan**, Tuesday, July 22, 2008 at 9:09pmtx= 30

total cost = 530

Thanks, How do i find the percent notation of a fraction?

14 over 25

- Mathmatics -
**Ms. Sue**, Tuesday, July 22, 2008 at 9:11pmDivide: 14 by 25.

Then multiply by 100 because percent means the number out of 100.

Or you can just move the decimal point two places to the right to get the percentage.

- Mathmatics -
**Bryan**, Tuesday, July 22, 2008 at 9:15pm56% thanks

How do I solve for N?

2/10 = n/15

- Mathmatics -
**Ms. Sue**, Tuesday, July 22, 2008 at 9:21pmYou could set this up as a proportion and cross multiply.

2/10 = n/15

2*15 = 10n

30 = 10n

3 = n

- Mathmatics -
**Bryan**, Tuesday, July 22, 2008 at 9:25pmSO the answear would be 2/10 = 30/15

because 2*15= 30

- Mathmatics -
**Ms. Sue**, Tuesday, July 22, 2008 at 9:36pmBryan -- I showed you how to solve this problem.

2/10 = n/15

2*15 = 10n

30 = 10n <<Divide both sides of the equation by 10.

3 = n

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