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Damm [24]
3 years ago
8

N a classroom of 33 students, the ratio of boys to girls is 3 : 8. How many boys are in the class?

Mathematics
1 answer:
tiny-mole [99]3 years ago
4 0

3 boys + 8 girls = 11 students

3 boys/ 11 students = x boys /33 students

using cross products

3 * 33 = x*11

divide by 11

99/11 = x

x=9

There are 9 boys

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Given

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To proof

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Therefore two values are

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Which expressions are equivalent to 12r-5
ANEK [815]

The expression 12r - 5 are equivalent to 6(2r+(-1))+1 and -4(2+(-3r))+3 option (A) and (B) are correct.

<h3>What is an expression?</h3>

It is defined as the combination of constants and variables with mathematical operators.

We have an expression:

= 12r - 5

A) 6(2r+(-1))+1

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B) -4(2+(-3r))+3

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Thus, the expression 12r - 5 are equivalent to 6(2r+(-1))+1 and -4(2+(-3r))+3 option (A) and (B) are correct.

Learn more about the expression here:

brainly.com/question/14083225

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2 years ago
Which of the following is a correct solution to the inequality 3x - 12 &gt; 15?
pishuonlain [190]
Solve the inequality just like you would solve an equation
<span>3x - 12 > 15
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Or read as "the solution to </span><span>3x - 12 > 15 is x is greater than 9"

Hope this helps :)</span>
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2 years ago
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