Friday, April 3, 2009

Proportion

4/3/09

Aim:How do we solve proportion by using  cross product?
1. The product help you remember  how solve a proportion  because it forces you to divide the product by the number that is how it helps.
 
2. The problem is that he didn't cross multiply right because 12*2= 24 and have put 36 that what wrong with the problem 
        2       x
 Ex. _   =  _ ; 2x; 36; x=18
        3       12


3. 6         2
     _    ,    _       first i multiplied  6 *15 =90 next i multiplied 2 * 45 = 90 then  i check my work and finally i agree that it is proportion
    45     15  

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