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kirill [66]
3 years ago
6

The diameter of a circle is 16 meters what is the area

Mathematics
1 answer:
KengaRu [80]3 years ago
3 0

Answer:

201.1 meters squared

Step-by-step explanation:

A= pi*r squared

Diameter= 16, to find the radius we must divide by 2

16/2=8

Radius= 8

A= pi* (8)^2

A= 201.06

The area of the circle is 201.1 meters squared.

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In RSM camp, there are four counselors for every fifty seven students and three teachers for every five counselors. Chapter Refe
max2010maxim [7]

The number of students attending the camp that summer is 380 students

Step-by-step explanation:

There are four counselors for every fifty seven students

There are three teachers for every five counselors

Ms. Rifkin asked all 16 teachers present at the camp to attend a

teachers meeting

To solve this question we will use the ratio

The given is:

1. 4 counselors for every 57 students

2. 3 teachers for every 5 counselors

3. There are 16 teachers

At first let us find the 16 teachers are for how many counselors

∵ 3 teachers : 5 counselors

∵ 16 teachers : x counselors

∴ \frac{3}{5}=\frac{16}{x}

By using cross multiplication

∴ 3x = 16 × 5

∴ 3x = 80

Divide both side by 3

∴ x = \frac{80}{3}

Then let us find the \frac{80}{3} counselors are for how many students

∵ 4 counselors : 57 students

∵ \frac{80}{3} counselors : y students

∴ \frac{4}{57}=\frac{80/3}{y}

By using cross multiplication

∴ 4y = 57 × \frac{80}{3}

∴ 4y = 1520

Divide both sides by 4

∴ y = 380 students

The number of students attending the camp that summer is 380 students

Learn more:

You can learn more about the ratio in brainly.com/question/6952762

#LearnwithBrainly

4 0
3 years ago
Please help me with this and pls don't answer if you don't know it.
Brrunno [24]

Answer:

See below.

Step-by-step explanation:

The 3 marked angles add up to 360 degrees.

5x + 12 + 10x - 37 + 9x + 1 = 360

24x - 24 = 360

24x = 384

x = 384/24 =  16

The large angle at C = 10(16) - 37

= 160 - 37 = 123 degrees.

So m <BCA = 180 - 123

=  57  degrees    (adjacent angles add up to 180).

4 0
3 years ago
(2x - 3y)(4x - y)<br> simplify for me
Galina-37 [17]
8x^2-14xy+3y^2 is the answer
5 0
3 years ago
The price of a cup of coffee was $2.65 yesterday. Today, the price fell to $2.30 . Find the percentage decrease. Round your answ
Semenov [28]
Percent change = change/original * 100
(2.65 - 2.30)/ 2.65    * 100
.35/2.65  * 100
13.2 % decrease
-13.2% if you need to write is as a negative
7 0
3 years ago
Pls help thank you:)​
labwork [276]

Answer:

|2x-5|<3

Step-by-step explanation:

.............

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3 years ago
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