30 because 0.3 * 100 = 30
Answer:
a) 35, b) 25, c) 60
Step-by-step explanation:
The number of girls is 10 more than the number of boys, so it's a good thing to choose a variable to represent the number of boys.
Number of boys: b
Number of girls: b + 10
Ratio of girls:boys is 7:5, so

"Cross multiply" to get

There are 25 boys. There are 10 more girls, so the number of girls is 35, and the total number of students is 60.
That's a packed classroom!
C.supplementary is the right one
Answer:
20
Step-by-step explanation:
all students who attend 1 MS and 1 HS in Miami, FL.
This is because they only surveyed 1 ms and 1 hs
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