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A roll of ribbon was 9 meters long. Olivia cut 8 pieces of ribbon, each of length 0.8 meters, to make some gifts. She then cut the remaining ribbon into pieces, each of length 0.4 meters.

How many pieces of ribbon, each 0.4 meters in length, did Olivia have?

Answer :

Sure! Let's solve this step by step.

1. Initial Setup:
- Olivia starts with a roll of ribbon that is 9 meters long.

2. First Cut:
- Olivia cuts 8 pieces of ribbon, each 0.8 meters long.

3. Calculate Ribbon Used for the First Cut:
- To find out how much ribbon was used, multiply the number of pieces by the length of each piece:
[tex]\[
8 \text{ pieces} \times 0.8 \text{ meters/piece} = 6.4 \text{ meters}
\][/tex]

4. Remaining Ribbon:
- Subtract the ribbon used from the original length to determine how much ribbon is left:
[tex]\[
9 \text{ meters} - 6.4 \text{ meters} = 2.6 \text{ meters approximately}
\][/tex]

5. Second Cut:
- Next, Olivia cuts the remaining ribbon into pieces, each 0.4 meters long.

6. Calculate Number of 0.4-meter Pieces:
- Divide the remaining ribbon length by the length of each piece:
[tex]\[
\frac{2.6 \text{ meters}}{0.4 \text{ meters/piece}} = 6.5 \text{ pieces approximately}
\][/tex]

Therefore, Olivia can cut about 6 full pieces of ribbon, each 0.4 meters long, from the remaining ribbon. However, since we typically can't count a fraction of a physical piece in real situations, Olivia can have 6 full pieces, with a small leftover that is not enough for another complete piece.

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Rewritten by : Barada