Friday, May 3, 2013

If 0.05x=20 what is x?

Solution:


0.05x=20 

remember: if we divide the left side of the equation by 0.05 to cancel, we also divide the right side to keep the equation balanced. 

%280.05%2Ax%29%2F0.05=20%2F0.05 

Now that the 0.05 has cancelled, we long divide 20 by 0.05 

x=20%2F0.05 

x=400

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