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Sagot :
To find where Genevieve will make the cut on the 60-inch piece of ribbon, we'll go through the following steps:
1. Identify the total length of the ribbon and the frayed length.
- The total length of the ribbon is 60 inches.
- The frayed end is 2 inches.
2. Determine the usable length of the ribbon that is not frayed.
- The non-frayed length of the ribbon is [tex]\(60 - 2 = 58\)[/tex] inches.
3. Determine the starting point after the frayed end.
- The starting point is at 2 inches.
4. Identify the total length from the starting point to the end of the ribbon.
- This length is from [tex]\(2\)[/tex] inches to [tex]\(60\)[/tex] inches.
5. Use the given ratio [tex]\(2:3\)[/tex] to find where to cut the ribbon.
- To use the formula for the cut position in the ratio [tex]\( \frac{m}{m+n} \)[/tex], we need:
[tex]\[ m = 2 \quad \text{and} \quad n = 3 \][/tex]
6. Apply the length and ratio to the formula [tex]\( x = \left(\frac{m}{m+n}\right) \left(x_2 - x_1\right) + x_1 \)[/tex]:
- Here, [tex]\( x_1 = 2 \)[/tex] inches (starting point) and [tex]\( x_2 = 60 \)[/tex] inches (end of ribbon).
[tex]\[ x = \left(\frac{2}{2+3}\right) \left(60 - 2 \right) + 2 \][/tex]
[tex]\[ x = \left(\frac{2}{5}\right) \cdot 58 + 2 \][/tex]
[tex]\[ x = 0.4 \cdot 58 + 2 \][/tex]
[tex]\[ x = 23.2 + 2 \][/tex]
[tex]\[ x = 25.2 \text{ inches} \][/tex]
7. Round the result to the nearest tenth:
- From the calculation, the cut position is [tex]\( 25.2 \text{ inches} \)[/tex].
So, Genevieve should make the cut at 25.2 inches from the starting point of the ribbon. Among the given options, 25.2 inches is the correct location.
1. Identify the total length of the ribbon and the frayed length.
- The total length of the ribbon is 60 inches.
- The frayed end is 2 inches.
2. Determine the usable length of the ribbon that is not frayed.
- The non-frayed length of the ribbon is [tex]\(60 - 2 = 58\)[/tex] inches.
3. Determine the starting point after the frayed end.
- The starting point is at 2 inches.
4. Identify the total length from the starting point to the end of the ribbon.
- This length is from [tex]\(2\)[/tex] inches to [tex]\(60\)[/tex] inches.
5. Use the given ratio [tex]\(2:3\)[/tex] to find where to cut the ribbon.
- To use the formula for the cut position in the ratio [tex]\( \frac{m}{m+n} \)[/tex], we need:
[tex]\[ m = 2 \quad \text{and} \quad n = 3 \][/tex]
6. Apply the length and ratio to the formula [tex]\( x = \left(\frac{m}{m+n}\right) \left(x_2 - x_1\right) + x_1 \)[/tex]:
- Here, [tex]\( x_1 = 2 \)[/tex] inches (starting point) and [tex]\( x_2 = 60 \)[/tex] inches (end of ribbon).
[tex]\[ x = \left(\frac{2}{2+3}\right) \left(60 - 2 \right) + 2 \][/tex]
[tex]\[ x = \left(\frac{2}{5}\right) \cdot 58 + 2 \][/tex]
[tex]\[ x = 0.4 \cdot 58 + 2 \][/tex]
[tex]\[ x = 23.2 + 2 \][/tex]
[tex]\[ x = 25.2 \text{ inches} \][/tex]
7. Round the result to the nearest tenth:
- From the calculation, the cut position is [tex]\( 25.2 \text{ inches} \)[/tex].
So, Genevieve should make the cut at 25.2 inches from the starting point of the ribbon. Among the given options, 25.2 inches is the correct location.
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