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Vilka [71]
3 years ago
10

When Andrei surveyed 36 random seventh-grade students in the lunchroom, he found that 7 out of 9 would like to try or have alrea

dy tried snorkeling. Using proportional reasoning, about how many of the 810 seventh-grade students in his school would like to snorkel?
Mathematics
2 answers:
Oduvanchick [21]3 years ago
7 0

Answer:

630

Step-by-step explanation:

The ratio of students that would like to try or already have tried snorkeling is 7/9.

The ratio of all students is an unknown amount out of 810 total students; this gives us x/810.

This gives us the proportion:

7/9 = x/810

Cross multiplying,

7*810 = 9*x

5670 = 9x

Divide both sides by 9:

5670/9 = 9x/9

630 = x

GenaCL600 [577]3 years ago
4 0

Answer:

Answer is C

Step-by-step explanation:

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