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September 21, 2014

September 21, 2014

Posted by **Sam** on Thursday, August 9, 2012 at 8:47am.

1 board foot =1 inch by 12 inches x 12inches

- math -
**MathMate**, Thursday, August 9, 2012 at 9:04amFind the total volume in cubic inches and divide by 144 cubic inches/board-foot.

[4(1*8*(6*12))+3(1*6*(4*12)]/144

will be the answer.

I will let you find that using your calculator.

- math -
**roxann**, Thursday, August 9, 2012 at 11:29amthe answer is 1730.25. The first part of the equation equals 2,304 then you add the 3 to it to make it 2,307 then you will times that by the second equation which is 108 and that will equal 249,156 when that is divided by 144 u get the answer

- math -
**MathMate**, Thursday, August 9, 2012 at 8:54pmTo Roxann:

when we have mixed addition and multiplications, the priority of operations dictate that multiplications and divisions take precedence over addition and multiplication.

For example,

5*2+3*4

means

(5*2)+(3*4) (* & ÷ before + & -

=10+12

=22

(5*2+3)*4 would not be the right way to do it.

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