2 years ago

Please help me i’ll give points

Mathematics

1 answer:

Umnica [9.8K]2 years ago

8 0

Answer:

A,B,D

Step-by-step explanation:

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There are 160 people in a grade. The ratio of boys to girls is 3 to 5. Which proportion can you use to find the number x of boys

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Answer:

60 boys

Step-by-step explanation:

boys : girls = 3 : 5

Total number of people = 160

Let y = common factor:

Therefore, 3y + 5y = 160

⇒ 8y = 160

⇒ y = 160 ÷ 8 = 20

Boys = 3y = 3 x 20 = 60

Girls = 5y = 5 x 20 = 100

So there are 60 boys and 100 girls

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Answer:

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Step-by-step explanation:

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3 years ago

Select the correct answer from each drop down menu. In the figure, AB=__inches and AC=___

BaLLatris [955]

Answer: In the figure AB is about 8.4 inches and AC is about 13.05 inches.

Step-by-step explanation: We can use cosine to find the hypotenuse. $cos(40)=\frac{10}{x} \\cos(40) (x)=\frac{10}{x}(x)\\cos(40) (x) =10\\\frac{cos(40) (x)}{cos (40)} =\frac{10}{cos (40)} \\x=\frac{10}{cos(40)}$

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Instructions: Find the following information using the given image.

NNADVOKAT [17]

Answer:

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x=60

Step-by-step explanation:

I submitted and it was correct

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i'm pretty sure it's d hope this helps

Step-by-step explanation:

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