Emma needs 84 centimeters of ribbons. She measures and cuts a piece from a spool of ribbon. Later she finds out she has actually cut 80 centimeters of ribbon. What is her percent error? Write your answer

Emma needs 84 centimeters of ribbons. She measures and cuts a piece from a spool of ribbon. Later she finds out she has actually cut 80 centimeters of ribbon. What is her percent error? Write your answer to the nearest whole percent.

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Emma needs 84 centimeters of ribbons. She measures and cuts a piece from a spool of ribbon. Later she finds out she has actually cut 80 centimeters of ribbon. What is her percen…

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