Posted by ma on Saturday, January 19, 2013 at 11:29am.
Cross multiply and solve for x.
3.2/0.2 = x/6.4
0.2x = 20.48
x = 20.48 / 0.2
x = ?
Using proportions and cross multiplication--
0.2x=(3.2)(6.4)
Therefore x= [(3.2)(6.4)]/.2
Thus, x= 102.4
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