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zhuklara [117]
3 years ago
9

I have no idea how to work out these problems please help

Mathematics
1 answer:
Irina18 [472]3 years ago
3 0

Answer:

I would say the one that says if 300 lunches were served then 40 more students chose pizza over salad. It is either that or the one on top i can't see the graph clearly enough.

Step-by-step explanation:

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Instructions:Drag the tiles to the correct boxes to complete the pairs. Not all tiles will be used.
Svetllana [295]

Answer:

D = 108°

F = 180°

H = 252°

I = 288°


Explanation:

Every regular polygon with <em>n </em>sides can be divided into <em>n</em>  congruent triangles. The angle with vertex the center of the polygon will measure 360 : <em>n </em>degrees. This will also be the angle of rotation under which the polygon matches itself.

We are given a regular decagon, therefore:

<em>n </em>= 10

α = 360 : <em>n </em>= 36°


We consider that, if the decagon is not rotated, A' coincides with A and the rotation is towards the next letter of the alphabet. This means that after one rotation of 36° A' will coincide with B, after two rotations A' will coincide with C and so on.

A' will coincide with D after three rotations: 3 × 36° = 108°

A' will coincide with F after five rotations: 5 × 36° = 180°

A' will coincide with H after seven rotations: 7 × 36° = 252°

A' will coincide with I after eight  rotations: 8 × 36° = 288°


7 0
3 years ago
Read 2 more answers
It takes 32 minutes for 8 people to paint 8 walls. How many minutes does it take 12 people to paint 12 walls ? Confused !
Radda [10]

Answer:

It takes 32 Minutes for 12 people to paint 12 walls

Step-by-step explanation:

If it takes 8 people 32 minutes to paint 8 walls, then that means each person takes 32 minutes to paint 1 wall. With that being said, If you have 12 people painting 12 walls, It will take 32 minutes for all 12 walls to be painted.

Hope this helps!

4 0
3 years ago
Read 2 more answers
Which of the following is equivalent to 2^2/5?
pashok25 [27]
The answer is letter A since the mixed form of 7/5 is equal to 1 and 2/5.
3 0
3 years ago
how many 1/2 foot unit cubes can be added to fill the prism completely use what you know about unit cubes or the side lengths of
Dima020 [189]

Answer:The volume of the cube is 1/2 x 1/2 x 1/2 = 1/8

2646/(1/8) = 21168

Step-by-step explanation:

4 0
3 years ago
Which system of inequalities is shown?
Yuliya22 [10]

Answer:

B.

Step-by-step explanation:

The horizontal dashed line with shading above is y > 4.

The diagonal line is y > x.

Answer: B.

3 0
2 years ago
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