There are 12 feet of wrapping paper on each roll. Jill needs 84 feet of wrapping paper. Which equation can Jill use to find the number of rolls, r, she needs?
12r = 84
84/r = 12
84/12 = r
All of these answers are correct.
There are 12 feet of wrapping paper on each roll. Jill needs 84 feet of wrapping paper. Which equation can Jill use to find the number of rolls, r, she needs?
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The correct equation Jill can use to find the number of rolls, r, she needs is:
12r = 84
### Explanation:
This equation represents that the total amount of wrapping paper needed (84 feet) is equal to the number of rolls (r) multiplied by the amount of wrapping paper on each roll (12 feet). To find r, you would solve the equation by dividing both sides by 12:
r = 84 / 12
This confirms that the equation is appropriate for calculating the number of rolls needed. If you have more questions or want to dive deeper into this topic, feel free to check the extended services page!