140 degrees decreased by 65%

Hey there! 
Here are the steps involved: 

1.Change 65% into a decimal. Move the decimal two places to the left and you get 0.65.

2. Multiply 0.65 by 50.
140 x 0.65 = 91.

3. Since you are decreasing 140 by 65%, subtract 140 by 91. 
140-91= 49

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Logical equivalent of the give question is its contrapositive