There are a total of 12 boys in a chess club. If the ratio of boys to girls in the chess club is 3 to 5, what is

Mathematics

1 answer:

n200080 [17]3 years ago

6 0

<h3>Answer: 32</h3>

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Explanation:

b = number of boys = 12
g = number of girls = unknown

The ratio of boys to girls is 3 to 5, which means,

b/g = 3/5

12/g = 3/5 ... plug in b = 12

12*5 = g*3 ... cross multiply

60 = 3g

3g = 60

g = 60/3 .... divide both sides by 3

g = 20 is the number of girls

b+g = 12+20 = 32 total students in the chess club.

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Oksanka [162]

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4 years ago

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loris [4]

<h3>Answer: Choice C, Ro, 270 </h3>

270 degree counterclockwise rotation around the origin

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Check out the diagram below. In the diagram, I only focus on points A and A'.

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