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3 years ago

The 12 students in the environmental Club represents 20% of the students in the 7th grade how many students are in the 7th grade

Mathematics

2 answers:

zloy xaker [14]3 years ago

8 0

Answer:

Step-by-step explanation:

.2 of 12 is 2.4 and you can't have 2.4 of a person so it is 2.

LUCKY_DIMON [66]3 years ago

8 0

I believe the answer is 60. The reason I think it’s 60 is because if 20 percent of the class is 12 students, and you need 5 sets of 20 to make 100 wouldn’t it be 12x5=60? Hope this helps!

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In a circle with a radius of 12.6 ft, an arc is intercepted by a central angle of 2 radians

Gennadij [26K]

Question:

In a circle with a radius of 12.6 ft, an arc is intercepted by a central angle of 2π/7 radians.

What is the arc length?

Use 3.14 for π and round your final answer to the nearest hundredth.

Enter your answer as a decimal in the box.

Answer:

<h3>Arc length is 11.30 feet</h3>

Solution:

Given that,

Radius of circle = 12.6 feet

Central angle = $\frac{2 \pi }{7}$ radians

To find: Arc length

The arc length of a circle of radius "r" when central angle given in radians is:

$s = r \times \theta$

Where,

s is the arc length

r is the radius

$\theta$ is the central angle in radians

Substituting the values we get,

$s = 12.6 \times \frac{2 \times \pi }{7}\\\\s = 12.6 \times \frac{2 \times 3.14 }{7}\\\\x = 11.304 \approx 11.30$

Thus, arc length is 11.30 feet

7 0

3 years ago

The number of light bulbs sold each day in two different hardware stores is represented in the box-and-whisker plots below.

puteri [66]

Answer:

A. Store A

Step-by-step explanation:

The median is shown by the very middle line of the box. The middle-most line on the box of store A is greater than that of Store B

4 0

3 years ago

-6a=54 what is my answer

kupik [55]

Answer:

-9

Step-by-step explanation:

-6a=54

you're trying to get a by its self so divide by -6 on both sides . To get a=54/-6=-9

3 0

3 years ago

Please help me out !!!!!!

MA_775_DIABLO [31]

Answer:

Im sorry but I am not really sure myself ! I hope you find or found your answer already !

Step-by-step explanation:

8 0

2 years ago

We have two fractions, 3/4 and 7/6 , and we want to rewrite them so that they have a common denominator (and whole number numera

gizmo_the_mogwai [7]

Answer:

12,24 etc

Step-by-step explanation:

4 and 6 both go into 12 evenly

4*3 = 12

6*2 = 12

12 is the least common denominator

We could also use 24

4*6 = 24

It is a common denominator, but not the least common denominator

We can use any multiple of 12

6 0

3 years ago