To determine if Sarah has enough yarn for all 25 picture frames, we can calculate the total amount of yarn she needs for all frames and then compare it to the amount she has.
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Calculate the total yarn needed for 25 picture frames: Each picture frame requires 40 inches of yarn. Therefore, for 25 frames, the total yarn needed is: \[ \text{Total yarn needed} = 25 \text{ frames} \times 40 \text{ inches/frame} = 1000 \text{ inches} \]
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Compare the total yarn needed to the yarn Sarah has: Sarah has a ball of yarn with a total of 950 inches.
Now we compare the total yarn needed (1000 inches) to the amount she has (950 inches):
- Total yarn needed: 1000 inches
- Yarn available: 950 inches
Since 1000 inches (needed) is greater than 950 inches (available), Sarah does not have enough yarn to glue onto all 25 picture frames.
Thus, the conclusion is that Sarah needs 1000 inches of yarn, but she only has 950 inches, which means she doesn't have enough yarn.
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