Krista32idn
Answered

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1. If the ratio of the boys to girls in the classroom is 8:7. If there are 45 students, how many are boys? a. 21 b. 24 c. 23 d. 25​

Sagot :

Brainly28165idn

Solution:

Let us analyze the given problem and find out our clues, which are the given.

Given:

ratio of 8:7
total of 45 students
no. of boys = ?

Next, let us transform "8" and "7" into "8x" and "7x", to make them add with each other which makes it equal to the total number of students.

8x + 7x = 45

Add.

15x = 45

Divide both sides by 15 and do the process of cancellation.

15x/15 = 45/15

x = 3

Now, let us substitute this with 8x as the ratio of boys to girls is 8:7

8x
8(3)

24

In conclusion, there are 24 boys in the classroom if there are a total of 45 students and the ratio of boys to girls is 8:7.

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