When Andrei surveyed 36 random seventh-grade students in the lunchroom, he found that 7 out of 9 would like to try or have already tried snorkeling. Using proportional reasoning, about how many of the 810 seventh-grade students in his school would like to snorkel?
Answer
A
About 157 seventh-grade students would like to snorkel.
B
About 202 seventh-grade students would like to snorkel.
C
About 630 seventh-grade students would like to snorkel.
D
About 720 seventh-grade students would like to snorkel.
Explanation
The survey suggests that 7 out of every 9 seventh-grade students would like to snorkel. Apply that proportion to all 810 students: (7/9) × 810 = 7 × 90 = 630. So about 630 students would like to snorkel.
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