There are 12 inches in a foot. Which expressions describe how many inches are in 4 feet? Check the THREE that apply.(3 points)Responses4 × 124 × 1212 ÷ 412 ÷ 412 + 12 + 12 + 1212 + 12 + 12 + 124 + 4 + 4 + 4 + 4 + 4 + 4 + 4 + 4 + 4 + 4 + 44 + 4 + 4 + 4 + 4 + 4 + 4 + 4 + 4 + 4 + 4 + 412 + 4

Answer 1

To find out how many inches are in 4 feet, you multiply the number of feet by the number of inches in one foot:

$$4\text{ feet}\times 12\text{ inches/foot}=48\text{ inches}$$

Now let's analyze the options given to find the correct expressions that result in 48 inches:

1. $4\times 12$ - This expression correctly computes to 48 inches (4 feet × 12 inches/foot).
2. $12÷4$ - This expression results in 3, which is incorrect for finding the number of inches in 4 feet.
3. $12+12+12+12$ - This adds up to 48 inches (4 instances of 12).
4. $12+4+4+4+4+4+4+4+4+4+4+4$ - The calculations here do not add up to 48, as it sums too high.
5. $4+4+4+4+4+4+4+4+4+4+4+4$ - This expression is incorrect as it sums to 48 but does not use measurements in inches properly based on feet.
6. $4\times 12+12$ - This expression results in 60 (48 + 12), which is incorrect for our purpose.
7. $12\times 4$ - This expression correctly computes to 48 (same as option 1).
8. $4+4+4+4+4+4+4+4+4+4$ - This calculates as 40, which is incorrect.

The correct expressions that yield 48 inches are:

1. $4\times 12$
2. $12+12+12+12$
3. $12\times 4$

Thus, the three expressions that describe how many inches are in 4 feet are:

• $4\times 12$
• $12+12+12+12$
• $12\times 4$