Sara needs 40 inches of yarn to glue onto each of 25 pictures frames. She has a ball of yarn with a total of 950 inches. Which of the following explains whether Sara has enough yarn to glue onto all 25 picture frames?

Question

Because 950 divide by 40 = 24 R10, she has enough yarn for all 25 picture frames.

Because 950 divide by 40 = 24 R10, she has enough yarn for only 24 picture frames.

Because 950 divide by 40 = 23 R30, she has enough yarn for only 23 picture frames.

Because 950 divide by 40 = 23 R30, she has enough yarn for only 24 picture frames.

Answer 1

To determine whether Sara has enough yarn for all 25 picture frames, we need to calculate the total amount of yarn needed for those frames:

Sara needs 40 inches of yarn for each of the 25 picture frames:

Total yarn needed = 40 inches/frame × 25 frames = 1000 inches.

Now, we know she has only 950 inches of yarn.

Since 1000 inches is greater than 950 inches, Sara does not have enough yarn to glue onto all 25 picture frames.

Let's evaluate the options given:

1. Because 950 divide by 40 = 24 R10, she has enough yarn for all 25 picture frames. (Incorrect: she does not have enough yarn)

2. Because 950 divide by 40 = 24 R10, she has enough yarn for only 24 picture frames. (Correct: she can glue around 24 frames with some yarn left)

3. Because 950 divide by 40 = 23 R30, she has enough yarn for only 23 picture frames. (Incorrect: this calculation is not accurate)

4. Because 950 divide by 40 = 23 R30, she has enough yarn for only 24 picture frames. (Incorrect: this calculation is not accurate)

The correct explanation from the list is:

Because 950 divide by 40 = 24 R10, she has enough yarn for only 24 picture frames.