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Law Incorporation [45]
3 years ago
7

Extra points :) Please CHECK my answers, thank you!

Mathematics
1 answer:
weeeeeb [17]3 years ago
4 0

Hi there.

Your answers are correct

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A circle has a diameter of 8cm, what is the perimeter and the area of the circle
Shkiper50 [21]

Answer:

❥

Diameter of a circle is 8 cm. Then find out the area and perimeter of the circle.

❥

Area of circle is 50.29(≈)cm² and perimeter of circle is 25.14(≈)cm.

❥

•Given :-

Diameter of the circle = 8 cm.

•To find :-

Area and perimeter of the circle.

• Solution :-

Let the radius of the circle be r cm.

Diameter = 8 cm.

We know,

★

So, Radius (r) = 8/2= 4 cm.

We know,

★

Area of circle= πr²

→Area of circle=

→Area of circle=

→Area of circle= 50.29(≈)cm²

____________________________

We know,

★

Perimeter of circle= 2πr

→ Perimeter of circle=

→Perimeter of circle=25.14(≈)cm

8 0
3 years ago
Read 2 more answers
2/7 (4+c)=6 plz help me I need to get it right
choli [55]
Problem: 2/7 (4+c)=6


1. 7/2 x 2/7 x (4+c)=7/2 x 6

2. 4+c=7 x 3

3. 4+c=21

4. c=21-4

Answer: c=17
7 0
3 years ago
Please help I will mark brainlist if correct
MakcuM [25]

The admission fee at a fair is $2.00 for children and $4.00 for adults.

On Saturday 2,500 people entered the fair and $7,000.00 were collected.

How many children and how many adults attended? Give your answer, using x for children, y for adults.

Form of: x =, and y =

 

Let K = no. of children

Let A = no. of adults

 

2500 people mean

Kids + Adults

 

K + A = 2500

K = 2500 – A

 

2K + 4A = 7000

K + 2A = 3500

 

(2500 – A) + 2A = 3500

A = 3500 – 2500

(A = 1000, adults)

 

K = 2500 – A

K = 2500 -1000

(K = 1500, Kids)

 

CHECK:

1500*2 = $3000

1000*4 = $4000

<span>(Total = $7000, people.). </span>

<span>
</span>

<span>Hope this helps:</span>

6 0
3 years ago
You plan to cut a board into 3 pieces to repair part of a railing. You are going to cut the two ends of the board off into two e
jarptica [38.1K]

Let's assume that the original length of the piece of board is L.

Now you cut two pieces that are 3.4 ft long, so the remaining piece of board is:

L - 3.4ft - 3.4ft = L - 6.8ft long.

Now we know that the remaining must be 2.35 times longer than the pieces of 3.4 ft, then we have the equation:

( L - 6.8ft) = 2.35×3.4ft

solving that for L we get:

L  = 14.79ft

Rounding to the nearest tenth, we get:

L = 14.8ft

You should buy a piece of board that is 14.8 feet long.

If you want to learn more, you can read:

brainly.com/question/22293035

5 0
3 years ago
Of the u.s states 4 have names that start with letter w. What percentage of the u.s states have names that start with the letter
Dima020 [189]
Washington, West Virginia, Wyoming, Wisconsin.

4/50=80%

Hope that helps
8 0
3 years ago
Read 2 more answers
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