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21 May, 18:50

Sennee cut a ribbon into 3 equal pieces. Then she cut 5 inches off one piece. That piece is now 3 inches long. What was the length of the original ribbon?

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  1. 21 May, 19:19
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    Each piece is x inches long. If she cut 5 inches from x, then it's now x-5 inches long.

    This is equal to 3 inches (given) so equate the two expressions and isolate x

    x-5 = 3

    x-5+5 = 3+5

    x = 8

    Each piece is 8 inches long. There are 3 pieces. Therefore the original ribbon was 24 inches long (8*3 = 24).
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