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MathWizard likes to play a fun number trick on her friends. She tells them to think of a number. She then tells them to subtract their number from 2 and multiply the result by 5. To this product she tells them to add half the difference when 24 is subtracted from 12 times their original number.

(a) If I use the number 8 and follow MathWizard's steps, what number will I get?

 Feb 20, 2019
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MathWizard likes to play a fun number trick on her friends. She tells them to think of a number. She then tells them to subtract their number from 2 and multiply the result by 5. To this product she tells them to add half the difference when 24 is subtracted from 12 times their original number.

(a) If I use the number 8 and follow MathWizard's steps, what number will I get?

 

Mmmmmm....that's a lot of stuff..LOL!!!

 

 

2 - 8  = - 6

 

-6 * 5 = -30

 

"  half the difference when 24 is subtracted from 12 times their original number."   translates to

 

(1/2) ( 8 * 12 - 24 ]  =    (1/2) [ 96 - 24 ]  = (1/2)(72) = 36

 

So

 

-30 + 36 =

 

 

 

cool cool cool

 Feb 20, 2019

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