08-04-2017
Mathematics

contestada

The algebraic expression 1.5x gives the total length of shelf space needed in inches for x encyclopedias. Find the length of shelf space needed for a set of 30 encyclopedias.

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dpoore2000 dpoore2000

08-04-2017

1.5x
1.5(30)
45

Since x represents the number of encyclopedias, substitute 30 for x, then multiply

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