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 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 + 12 + 12 + 12 12 + 12 + 12 + 12 4 × 12 4 × 12 12 ÷ 4

Answer 1

To determine how many inches are in 4 feet, we need to consider that there are 12 inches in a foot.

Calculating the total inches in 4 feet:

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

Now, let's analyze the provided expressions:

1. 12 + 4: This does not equal 48, so it doesn't work.
2. 12 + 4 (duplicate): Same as above, still doesn't work.
3. 4 + 4 + 4 + 4 + 4 + 4 + 4 + 4 + 4 + 4 + 4 + 4: This is 4 added 12 times, which equals 48. This works.
4. 4 + 4 + 4 + 4 + 4 + 4 + 4 + 4 + 4 + 4 + 4 + 4 (duplicate): Same as above, still works.
5. 12 + 12 + 12 + 12: This equals 48 (12 added 4 times), so this works.
6. 12 + 12 + 12 + 12 (duplicate): Same as above, still works.
7. 4 × 12: This equals 48 (4 times 12), so this works.
8. 12 ÷ 4: This equals 3, which does not work.

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

• 4 + 4 + 4 + 4 + 4 + 4 + 4 + 4 + 4 + 4 + 4 + 4 (or the duplicate of this).
• 12 + 12 + 12 + 12 (or the duplicate of this).
• 4 × 12.

Thus, the three expressions that apply are:

1. 4 + 4 + 4 + 4 + 4 + 4 + 4 + 4 + 4 + 4 + 4 + 4
2. 12 + 12 + 12 + 12
3. 4 × 12

Answer 2

A dance school offers 5 types of classes: jazz, tap, hip-hop, ballet, and lyrical. It conducts 950 classes over the course of a year. If it conducts the same number of each type of class, how many jazz classes are given? NOTE: Please enter strictly numbers in the answer box to be scored correctly. NOTE: There is a check answer button in the bottom right corner. Click this to check your answer before moving on to the next question. It will not tell you the correct answer, but it will tell you if the answer you selected is correct. You can use this feature once per question. (1 point) jazz classes

Answer 3

To find out how many jazz classes are given, we first need to determine how many classes of each type are conducted.

Since there are 5 types of classes and a total of 950 classes conducted in a year, we divide the total number of classes by the number of types:

\[ \text{Number of classes of each type} = \frac{950 \text{ classes}}{5 \text{ types}} = 190 \text{ classes} \]

Therefore, the number of jazz classes given is 190.

So, the answer is:

190

Answer 4

Sid was asked to subtract 214 from 346. His work is shown. Which statements are true about Sid's work? Check the TWO that apply. NOTE: There is a check answer button in the bottom right corner. Click this to check your answer before moving on to the next question. It will not tell you the correct answer, but it will tell you if the answer you selected is correct. You can use this feature once per question. (2 points) Responses Sid should have written 214 on top and 346 on bottom. Sid should have written 214 on top and 346 on bottom. Sid lined up the place values correctly. Sid lined up the place values correctly. Sid’s answer of 32 is correct. Sid’s answer of 32 is correct. Sid forgot to subtract the hundreds place, so his answer is incorrect. Sid forgot to subtract the hundreds place, so his answer is incorrect.

Answer 5

To determine which statements about Sid's work are true, let’s first break down the subtraction he was asked to perform:

Sid was asked to calculate \( 346 - 214 \).

1. Aligning Numbers: The correct way to write the subtraction is to have the larger number on top (346) and the smaller number below (214). Therefore, the first statement is true: Sid should have written 214 on top and 346 on bottom (this part is incorrect, as 346 should be on top).

2. Place Values: When performing subtraction, it's essential to align the digits according to their place values (hundreds, tens, units). If Sid aligned the numbers the correct way when he wrote them (with 346 on top), then he would have lined them up correctly. If he did not, then he did not align them correctly. The second statement may or may not be true based on how he lined them up.

3. Sid’s Answer: Now let's calculate \( 346 - 214 \): \[ \begin{array}{c@{}c@{}c@{}c@{}c@{}c@{}c@{}c} & 3 & 4 & 6 \

• & 2 & 1 & 4 \ \hline & 1 & 3 & 2 \ \end{array} \] Performing the subtraction, we have:

  • Units: \( 6 - 4 = 2 \)
  • Tens: \( 4 - 1 = 3 \)
  • Hundreds: \( 3 - 2 = 1 \)

  Therefore, the correct answer is 132. This means:

  a) Sid’s answer of 32 is incorrect.

4. Hundreds Place: Since Sid's answer is incorrect, the statement that Sid forgot to subtract the hundreds place, so his answer is incorrect is likely true, as he should have subtracted 3 (hundreds place of 346) minus 2 (hundreds place of 214), which is 1.

Based on this analysis, the two true statements are:

• Sid forgot to subtract the hundreds place, so his answer is incorrect.
• Sid's answer of 32 is incorrect.

Thus, the correct options are the last two options provided.

Answer 6

witch one

Answer 7

Apologies for any confusion. Based on the analysis provided, the two true statements about Sid's work are:

1. Sid's answer of 32 is correct. (This is not true; his answer is incorrect.)
2. Sid forgot to subtract the hundreds place, so his answer is incorrect. (This is true.)

Given this, the correct answers you should choose are:

• Sid forgot to subtract the hundreds place, so his answer is incorrect.
• Sid should have written 214 on top and 346 on bottom. (This is also true, as the larger number should be on top.)

The other option, "Sid lined up the place values correctly," would be false if he wrote it in the wrong order.

So, the final selections you should make are:

• Sid forgot to subtract the hundreds place, so his answer is incorrect.
• Sid should have written 214 on top and 346 on bottom.

Choose those two statements.

Answer 8

Match the operation to the word description. NOTE: There is a check answer button in the bottom right corner. Click this to check your answer before moving on to the next question. It will not tell you the correct answer, but it will tell you if the answer you selected is correct. You can use this feature once per question. (4 points) Put responses in the correct input to answer the question. Select a response, navigate to the desired input and insert the response. Responses can be selected and inserted using the space bar, enter key, left mouse button or touchpad. Responses can also be moved by dragging with a mouse. − × ÷ +

Answer 9

To match the operations to their corresponding word descriptions, here's how they generally correspond:

1. Addition: This is represented by the symbol +. It describes the operation of combining quantities.

2. Subtraction: This is represented by the symbol −. It refers to taking away a quantity from another.

3. Multiplication: This is represented by the symbol ×. It indicates combining a quantity repeatedly.

4. Division: This is represented by the symbol ÷. This operation describes splitting a quantity into equal parts or finding how many times one number is contained within another.

So the matching looks like this:

• Addition (combine quantities) → +
• Subtraction (take away) → −
• Multiplication (combining repeatedly) → ×
• Division (split into equal parts) → ÷

Make sure to select the appropriate symbols for these operations in the interface you are using.