Question

A scientist found that 12 out of 18 birds had a red spot on their heads.

Answer 1

12 over 18 would be the correct answer or 1 over 3, thats better

Answer 2

A) The working out part is easy:

Let x = 0.66666. Now take x and multiply it by 10, or 100, or 1000.They all work out the same way.

so 10x = 6.66666. Now subtract x = 0.66666 like this:

10x = 6.66666
x = 0.66666
____________

9 x = 6,

so x = 6/9.
Reduce the fraction by dividing numerator (top number) and denominator (bottom number) by 3, their greatest common factor. So, x = 6/9 = 2/3.

Your answer is 2/3.


B) 2/3 as a decimal is 0.66666666, or 0.6 repeating.

 * 100 =

C) 0.6 (Repeating) * 100 = 66.66666 and so on, so 66.6% percent.


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