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Murljashka [212]
3 years ago
14

1. Timika is a counselor at a summer camp for young children. She wants to take 20 campers on a hike and wants to

Mathematics
1 answer:
OLga [1]3 years ago
3 0

Answer: N = 20C2 = 190

Therefore, Timika has 190 ways of choosing the pairs of children to lead the way

Step-by-step explanation:

Given;

Total number of children = 20

Number of children to lead the way = 2

Since all the children have equal possibilities of being selected to lead the way, and for the order is not important.

Then the number of ways to select two leaders from 20 children will be given by;

N = 20C2 = 20!/2!(20-2)! = 20!/2!18!

N = 20 × 19/2

N = 190

Therefore, Timika has 190 ways of choosing the pairs of children to lead the way

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You have $120 in your checking account. In one month, you deposit $30, write a check for $21, withdraw $20, and deposit $45. Fin
gizmo_the_mogwai [7]

Answer:

Your total balance is 154.

Step-by-step explanation:

You start with 120.

+30

-21

-21

+45

Hope that helps.

4 0
3 years ago
Read 2 more answers
Help with #20 please!!!!!
shepuryov [24]
Remember that things like this, always need to add up to 180°.

7 0
3 years ago
Help me with this please.
Drupady [299]

Answer:

1. 83 square inches

2. 7.065 square centimeters

Step-by-step explanation:

Hey there!

In order to find the area of the shaded region of the rectangle, you need to first find the area of the whole shape

The dimensions are 10 and 16 and if you multiply them together, you get 160

This means that the area of the whole shape is 160

Now they are asking for the area of the shaded shape, so we need to find the area of the white rectangle, and then subtract that area from 160

The dimensions for the white rectangle is 11 and 7

This means that the area of the white rectangle is 77

Now what we need to do is subtract 77 from 160

160-77=83

So the area of the shaded region is 83 square inches

Now to get to the second question

We need to find the area of the quarter circle

In order to find this, we need to first find the area of the whole circle, then divide that by 2

They gave us the radius already which makes it a lot easier (the radiues is 3)

All we need to do is input 3 into the formula for the area of a circle

\pi r^2

In this case, since they are telling us to use 3.14 as pi, the equation would look like this:

3.14*3^2

This can be simplified to 3.14*9 which is equal to 28.26

So this is the area of the whole circle

But the question is asking for the area of a quarter of that circle

So what we need to do is divide 28.26 by 4 which is 7.065

So the area of the quarter circle is 7.065 square centimeters

4 0
2 years ago
How do i find 0,8% of 618
kipiarov [429]
Multiply them together

8 0
3 years ago
Read 2 more answers
Find the area of the bedroom with the shape shown in the figure, in square feet. A) 67 ft2 B) 106 ft2 C) 506 ft2 D) 548 ft2
jek_recluse [69]

Answer:

\large{ \tt{❃ \: EXPLANATION }}:

  • Firstly , See the attached picture! :) I splitted the provided figure into two rectangles i.e namely small rectangle & big rectangle !

\large{ \tt{❁ \: LET'S \: START}} :

  • Find out the area of small rectangle having length of 14 ft & width of 12 ft :

\large{ \tt{ ↦ AREA\: OF \: SMALL \: RECTANGLE= L \times W = 14 \times 12 =  \boxed{ \tt{168 \:  {ft}^{2} }}}}

  • Find out the area of big rectangle having length of 20 ft and width of 19 ft :

\large{ \tt{↦AREA \: OF \: BIG \: RECTANGLE = L \times W = 20 \times 19 =  \boxed{ \tt{380 \:  {ft}^{2} }}}}

  • Now , Add the area of small rectangle & area of big rectangle :

\large{ \tt{☄ \:TOTAL \: AREA =  AREA \: OF \: SMALL \: RECTANGLE + AREA \: OF \: BIG \: RECTANGLE}}

\large{ \tt{⇢168 \:  {ft}^{2}  + 380 \:  {ft}^{2} }}

⇢ \boxed {\boxed{ \large{ \tt{548 \:  {ft}^{2} }}}}

  • \large{ \boxed{ \tt{⇝ \: OUR\: FINAL\: ANSWER :   \boxed{\underline{ \tt{D. \: 548 \:  {ft}^{2} }}}}}}

  • ✺ WORK HARD! So that tommorrow , your parents can be recognized by your name!

♡Hope I helped! ツ

☼Have a wonderful day / evening !☃

# StayInAndExplore !☂

▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁

7 0
3 years ago
Read 2 more answers
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