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3 years ago

9

A ratio of boys to girls in the classroom is 4 to 5if there are 20 girls in the class how many boys would there be? Explain your

response

2 answers:

sergey [27]3 years ago

6 0

16 because 5 times 4 = 20 there for you multiply 4 times 4 to get 16

EleoNora [17]3 years ago

3 0

Answer:

16 boys

Step-by-step explanation:

4/5 = ?/20 , multiply 20 and 4 then divide by 5

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Zolol [24]

Answer:

Exterior = 22.5 degrees

Interior = 157.5 degrees

Step-by-step explanation:

Exterior angles = 360/16 = 22.5

Interior Angles = 180 - 22.5 = 157.5

5 0

3 years ago

Pls answer thank you

Rashid [163]

Answer:

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<em> $as \: the \: diagram \: given \: \\ surface \: area \: = (9 \times 17 \times 2 + 4 \times 17 + 4 \times 9 + 4 \times 17 + 9 \times 4) {in}^{2}$ </em>

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3 years ago

If it takes 5 people 5 minutes to make 5 pencils, how long would it take 100 people to make 100 pencils?

Fofino [41]

First let's figure out how many people it takes to make one pencil. One person can make 1 pencil in 1 minute. So, 100 people would take 100 minutes to get 100 pencils.

Or multiply all the 5's by 20 and you'll get 100 minutes.

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3 years ago

Circle O has a circumference of 132 feet. What is the approximate area of a circle O?

Archy [21]

Answer:1387.96

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Step-by-step explanation:

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3 years ago

Finding area of a sector

katen-ka-za [31]

The smaller sector is 360-255=105 degree
it is 105/360 portion of the whole circle, and the area of the whole circle is πr², r is 14
so the area of the smaller sector is (105/360)*π*14²
run those numbers through your calculator, use 3.14 for π, you get 179.5

if you are looking for area of the larger sector, it would be
(255/360)*π*14²=435.94

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3 years ago