Question 1196695
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Let x be the length of a side of the box; then the volume 9680 is 5x^2.<br>
5x^2 = 9680
x^2 = 9680/5 = 1936
x = sqrt(1936) = 44<br>
Since 5 inches were cut out of each corner of the original piece of cardboard, the side length of the original piece of cardboard was 44+2(5) = 54 inches.<br>
ANSWER: 54 inches<br>