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yuradex [85]
2 years ago
11

The ratio of girls to boys in a particular classroom is 8: 7. How many boys are in the class if there are 45 students?

Mathematics
1 answer:
Dmitry [639]2 years ago
8 0

9514 1404 393

Answer:

  21

Step-by-step explanation:

Rearranging the given ratio, we can find the ratio of boys to the total.

  boys : (boys +girls) = 7 : (7+8) = 7 : 15

Then the number of boys is ...

  (7/15)(45) = 21

There are 21 boys in the classroom.

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Basile [38]
The answer to this problem is the letter "A" which is "Multiply by 3, then add 2"
and can be written a N = 3n + 2
At first, we have initial value such n = 1
Then the second value is:
N = 3*1 + 2
N = 5
The third value is:
N = 3*5 + 2
N=17
The next values are:
N = 3*17 + 2
N= 53
The letter "A" is the inductive reasoning to the given sequence.
6 0
3 years ago
Nathan needs some paint for his bedroom. He finds two cans of white paint, four cans of green paint and three cans of pink paint
horsena [70]

The probability of randomly selecting a can of pink paint is P = 1/3, so the correct option is A.

<h3>What is the chance that he will paint his bedroom pink?</h3>

Assuming that all the cans of paint have the same probability of being randomly selected, the probability that he will choose a pink can is equal to the quotient between the number of pink cans and the total number of cans.

There are 2 cans of white, 4 cans of green, and 3 cans of pink, so a total of 9 cans.

Then the probability is:

P = 3/9 = 1/3.

The correct option is A.

If you want to learn more about probability:

brainly.com/question/251701

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4 0
2 years ago
1. The graph shows the height of a plant after a certain amount of time measured in days.
kirza4 [7]
Wow this is a lot I am so sorry anyone smart hasn’t answered this yet cause I really do know the answer to this
4 0
2 years ago
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This composite figure is created by placing a sector of a circle on a rectangle. What is the area of this composite figure? Show
Soloha48 [4]

Answer:

area of the figure: 29.92 m²

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solving steps:

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8 0
2 years ago
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olga55 [171]

Answer:

C. 20(degree symbol)

Step-by-step explanation:

lol I couldn't find the degree symbol so I just did that

hope this helps :)

7 0
2 years ago
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