If 81 ⋅ 432 = 34,992 , what is 8.1 × 4.32 ?

Question

Responses

3.4992
3.4992 - no response given

34,992
34,992 - incorrect

34.992
34.992 - not selected, this is the correct answer

349.92

Answer 1

To find the value of \( 8.1 \times 4.32 \), we can make use of the given equation \( 81 \times 432 = 34,992 \).

Notice that \( 8.1 \) is \( 81 \) divided by \( 10 \) (or \( 81 \times 0.1 \)) and \( 4.32 \) is \( 432 \) divided by \( 100 \) (or \( 432 \times 0.01 \)). Therefore, we can express \( 8.1 \times 4.32 \) as follows:

\[ 8.1 \times 4.32 = \left( \frac{81}{10} \right) \times \left( \frac{432}{100} \right) \]

This simplifies to:

\[ = \frac{81 \times 432}{10 \times 100} = \frac{34,992}{1000} = 34.992 \]

Thus, the answer is \( 34.992 \).

Answer 2

wrong if 81 . 432=34,992 i 8.1 * 4.32 = 34,992 she said the answer like

Answer 3

I apologize for any confusion. Let's clarify the calculations correctly based on the information provided.

From the statement provided, we know that:

\[ 81 \times 432 = 34,992 \]

Now, we want to find \( 8.1 \times 4.32 \).

Since \( 8.1 \) is \( 81 \div 10 \) and \( 4.32 \) is \( 432 \div 100 \), we can rewrite \( 8.1 \times 4.32 \) as:

\[ 8.1 \times 4.32 = \left(\frac{81}{10}\right) \times \left(\frac{432}{100}\right) \]

This can be simplified:

\[ = \frac{81 \times 432}{10 \times 100} = \frac{34,992}{1000} = 34.992 \]

So \( 8.1 \times 4.32 = 34.992 \).

If you were told that \( 8.1 \times 4.32 = 34,992 \), that is incorrect. The correct answer is indeed 34.992. Thank you for your patience, and I hope this clears up any misunderstanding!