Question

There are 12 inches in a foot. Which expressions describe how many inches are in 4 feet? Check the THREE that apply.(3 points)
Responses

12 + 4
12 + 4

12 ÷ 4
12 ÷ 4

4 + 4 + 4 + 4 + 4 + 4 + 4 + 4 + 4 + 4 + 4 + 4
4 + 4 + 4 + 4 + 4 + 4 + 4 + 4 + 4 + 4 + 4 + 4

4 × 12
4 × 12

12 + 12 + 12 + 12

Answer 1

To find out how many inches are in 4 feet, we can use the fact that there are 12 inches in a foot. Therefore, we can calculate:

4 feet × 12 inches/foot = 48 inches.

Now, let's analyze the given expressions to see which ones correctly describe the same calculation:

1. **12 + 4**: This does not calculate inches in feet. Incorrect.

2. **12 ÷ 4**: This does not correctly calculate inches in feet. Incorrect.

3. **4 + 4 + 4 + 4 + 4 + 4 + 4 + 4 + 4 + 4 + 4 + 4**: This sums to 48 (4 added 12 times), which equals the number of inches in 4 feet. Correct.

4. **4 × 12**: This directly calculates the total inches in 4 feet (4 times 12 equals 48). Correct.

5. **12 + 12 + 12 + 12**: This sums to 48 (12 added 4 times), which equals the number of inches in 4 feet. Correct.

The three correct expressions that describe how many inches are in 4 feet are:

- **4 + 4 + 4 + 4 + 4 + 4 + 4 + 4 + 4 + 4 + 4 + 4**
- **4 × 12**
- **12 + 12 + 12 + 12**

So the correct answers are the last three options: **4 + 4 + 4 + 4 + 4 + 4 + 4 + 4 + 4 + 4 + 4 + 4**, **4 × 12**, and **12 + 12 + 12 + 12**.