(2•l)+(2•w)=38. (2•l)+8=38. Subtract 8 from both sides which leaves (2•l)=30. Divide by 2 from both sides and that leaves 15.
To find the length of a sheet of paper with a perimeter of 38 cm and a width of 8 cm, we used the perimeter formula for rectangles. By substituting the known values and simplifying, we determined that the length is 11 cm. Therefore, the length of the paper is 11 cm.
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