Answer :
So your answer would be 7 because if you divide 21÷3 your answer would be 7.
Final answer:
Eudora cuts the 21 meters of ribbon into 7 pieces of 3 meters. She needs 5 more pieces to reach a total of 12 pieces.
Explanation:
Eudora has bought total 21 meters of ribbon. She cuts the ribbon into pieces each measuring 3 meters. So, to calculate the number of pieces she would have, divide the total length of ribbon she has by the length of each piece. Therefore, 21 (total length of the ribbon) divided by 3 (length of each piece) is 7. So, Eudora has 7 pieces of ribbon.
Next, the question states that Eudora needs a total of 12 pieces of the shorter ribbon. She already has 7 pieces. To find the number of additional pieces needed, subtract the number of pieces she already has from the total number required. Therefore, 12 (total pieces required) minus 7 (pieces already available) equals 5. Thus, Eudora needs 5 more pieces of the shorter ribbon.
Learn more about Division and Subtraction here:
https://brainly.com/question/1292482
Complete question:
Eudora buys 21 meters of ribbon. She cuts the ribbon so that each piece measures 3 meters in length.
a. How many pieces of ribbon does she have?
b. If Eudora needs a total of 12 pieces of the shorter ribbon, how many more pieces of the shorter ribbon does she need?
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