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3 years ago

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The ratio of girls to boys in a class is 4:3. If the total number of students in the class are 28. How many of them are girls?

1 answer:

Olegator [25]3 years ago

7 0

4x + 3x = 28

7x = 28

7x/7 = 28/7

X = 4

Girls = 4

4x4 = 16

16 girls

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Help asap my last question GIVING BRAINLIST!!!!

Alex

Answer:

1) $x < 0$

2) $x > 0$

3) $x < 10$

4) $x < -\frac{31}{55}$

5) $x \geq 0$

6) $x \geq -1$

Step-by-step explanation:

1) $-3 > 2x -3$

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$x > 0$

3) $\frac{x}{5} -2 < 0$

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4) $-5x + 11 > 31$

$-5x \cdot 11 < 31$

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5) $\frac{1}{2}x - 4 \geq -4$

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$\frac{1}{2}x \geq 0$

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3 years ago

The length of a rectangle is 5 more than 3 times the width. Write and solve an equation to find the width (w) if the length is 1

GenaCL600 [577]

Answer:

Length = 42.5 cm

Step-by-step explanation:

length of rectangle = 5 + 3w

So l = 5 + 3w where w = 12.5

Equation:

L = 5 + 3(12.5)

Solving the Equation:

L = 5 + 3(12.5)

L = 5 + 36 + 1.5

L = 42.5

Length: 42.5 cm

If my answer is incorrect, pls correct me!

If you like my answer and explanation, mark me as brainliest!

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3 years ago

Help plzzz will give brainliest

Rasek [7]

Answer:

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3 years ago

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Novosadov [1.4K]

Answer: x=12

Step-by-step explanation:

5x-15=2x+21(AIA)

3x-15=21

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x=12

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3 years ago