3 years ago

12 out of 30 people chose their favourite colour as blue caculate the angle you would use for blue on a pie chart

Mathematics

1 answer:

GrogVix [38]3 years ago

6 0

Answer:

The angle = 144 degrees.

Step-by-step explanation:

Look at it this way (it is a proportion question)

30 people would require a pie chart made of a full circle (360 degrees)

12 people would require x part of the pie chart.

30/360 = 12 / x Cross multiply

30x = 360 * 12 Simplify the right

30x = 4320 Divide by 30

30x/30 = 4320/20

x = 144 Answer

You might be interested in

Which point would map onto itself after a reflection across the line y = –x?

Softa [21]

Answer:

its D

Step-by-step explanation:

3 0

2 years ago

Read 2 more answers

What is the inverse one to one function of f(x) = square root of x-2???

alexira [117]

$f(x) = \sqrt{x - 2} \\y = \sqrt{x - 2} \\y^{2} = (\sqrt{x - 2})^{2} \\y^{2} = x - 2 \\x^{2} = y - 2 \\x^{2} + 2 = y \\x^{2} + 2 = f^{-1}(x)$

6 0

3 years ago

Graph the image of the given triangle under a dilation with a scale factor of 14 and center of dilation (0, 0) . To graph th

DochEvi [55]

Answer:

the begging explanation

Step-by-step explanation:

hope this helped

5 0

3 years ago

If a median, an altitude, and an angle bisector are the same segment in a triangle, the triangle is scalene

statuscvo [17]

Never is the right answer .

3 0

3 years ago

Ashley digs 7 holes.She puts 2 seeds in each hole.She has 3 seeds left over.How many seeds are there in all?

Semenov [28]

17 seeds are left over because in the 7 holes she puts 2 seeds in each which if you multiply it it will equal to 14 and plus the three that she has left over and if you add 14 and 3 you get 17 seeds. hope this helps!

3 0

3 years ago

Read 2 more answers