IDNLearn.com makes it easy to find answers and share knowledge with others. Discover prompt and accurate answers from our experts, ensuring you get the information you need quickly.

Calculate the number of apples in the 12th bag. Show your working.

There are 12 bags of apples on a market stall. The mean number of apples in each bag is 8.

The table shows the number of apples in 11 of the bags:

[tex]\[
\begin{tabular}{|c|c|}
\hline
Number of apples & Frequency \\
\hline
6 & 1 \\
\hline
7 & 4 \\
\hline
8 & 2 \\
\hline
9 & 3 \\
\hline
10 & 1 \\
\hline
\end{tabular}
\][/tex]

First, find the total number of apples in the 11 bags:

[tex]\[
(6 \times 1) + (7 \times 4) + (8 \times 2) + (9 \times 3) + (10 \times 1) = 6 + 28 + 16 + 27 + 10 = 87
\][/tex]

Next, calculate the total number of apples for 12 bags with a mean of 8 apples per bag:

[tex]\[
8 \times 12 = 96
\][/tex]

Finally, find the number of apples in the 12th bag:

[tex]\[
96 - 87 = 9
\][/tex]


Sagot :

To find the number of apples in the 12th bag, follow these steps:

1. Calculate the total number of apples in the first 11 bags:
- We use the table to identify the number of apples in each bag and their corresponding frequencies:
[tex]\[ \begin{aligned} &\text{Number of apples in 6-apple bags} &= 6 \times 1 &= 6 \\ &\text{Number of apples in 7-apple bags} &= 7 \times 4 &= 28 \\ &\text{Number of apples in 8-apple bags} &= 8 \times 2 &= 16 \\ &\text{Number of apples in 9-apple bags} &= 9 \times 3 &= 27 \\ &\text{Number of apples in 10-apple bags} &= 10 \times 1 &= 10 \\ \end{aligned} \][/tex]

- Sum these amounts to find the total number of apples in the first 11 bags:
[tex]\[ 6 + 28 + 16 + 27 + 10 = 87 \][/tex]

2. Calculate the total number of apples in all 12 bags using the mean:
- The mean number of apples per bag is given as 8. Therefore, the total number of apples in all 12 bags is:
[tex]\[ 8 \times 12 = 96 \][/tex]

3. Determine the number of apples in the 12th bag:
- To find the number of apples in the 12th bag, subtract the total number of apples in the first 11 bags from the overall total number of apples:
[tex]\[ 96 - 87 = 9 \][/tex]

Thus, the number of apples in the 12th bag is [tex]\( 9 \)[/tex].