Question

there are 300 seventh - grade students at amayas school. a random sample of seventh - graders were asked if they usually buy lunch from the cafeteria or bring lunch from home. the results showed that 9 students in the sample buy lunch and 16 students bring lunch.
write an expression you can use to estimate the number of seventh - grade students who do not buy lunch from the cafeteria.
\\( \frac { 16 } { 25 } \cdot 300 \\)
complete the statement.
about? seventh - grade students do not buy lunch from the cafeteria.
16
108
192
300

Explanation:

Step1: Calculate the value of the expression

We have the expression \(\frac{16}{25}\cdot300\).
First, simplify \(\frac{16}{25}\cdot300\). We can rewrite \(300\) as \(\frac{300}{1}\). Then \(\frac{16}{25}\cdot\frac{300}{1}=\frac{16\times300}{25}\).
Since \(300\div25 = 12\), then \(16\times12\).

Step2: Perform the multiplication

\(16\times12=(10 + 6)\times12=10\times12+6\times12=120+72 = 192\)

Answer:

\(192\)