问SAT2010,1月的一道数学题?
问SAT2010,1月的一道数学题?
when printing a line of text ,a printer begins 1 inch from the left edge of the paper and ends 5/4 inches from the right edge.if the paper is 17/2 inches wide ,how many inches can be used for printing each line?答案是25/4
when printing a line of text ,a printer begins 1 inch from the left edge of the paper and ends 5/4 inches from the right edge.if the paper is 17/2 inches wide ,how many inches can be used for printing each line?答案是25/4
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