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Ne4ueva [31]
3 years ago
9

The number of boys to girls in math class is 2:3 If there are 21 girls in Mrs. Vest's math class, how many boys are there? Can w

e use what we know about quivalent ratios to figure out how many boys are in the class?​
Mathematics
2 answers:
slega [8]3 years ago
6 0

Answer:

There are 14 boys in the class. Yes, we can use what we know to figure out how many boys are in the class.

Step-by-step explanation:

think about the ratio as a fraction if the fraction is 2/3 and then compare it to x/21 21/3 is 7 and 7*2 is 14

torisob [31]3 years ago
5 0

Answer:

there are 6 boys in the class

Step-by-step explanation:

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Answer:

3x + 4 = 12 :- x = 8 / 3

Step-by-step explanation:

3x + 4 = 12

Move all terms not containing x to the right side of the equation.

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Subtract 4 from 12.

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Divide each term in 3x = 8 by 3.

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Cancel the common factor of 3.

Divide x by 1.

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The result can be shown in multiple forms.

Exact Form:

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Decimal Form:

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