There's only information to answer question C.
We can only know that 32 marbles were chosen. (yellow and black)
Why?
To answer the first two questions (a and b), we need to know the total number of marbles, so, we can only answer the last question (c).
We know that 7/10 of the 20 yellow marbles were chosen.
So, calculating we have:
Also, we know that 18 black marbles were chosen, so, the total of marbles chosen is equal to 32 (yellow marbles and black marbles)
Have a nice day!
Not completely sure of what this question is asking, but the orientation is the same. The actual triangle moved diagonally.
Answer:
A is 42 degrees B is 84
Step-by-step explanation:
Daniela made her error on step 3 because it says: <span>
<span>"Find the ratio of the differences of the means compared to the mean absolute deviation.
</span><span>
She didn't find the difference between the today and last week means. She just put the mean as a whole.</span></span>
When given two fractions for example 2/3 divided by 3/6
the division sign changes to a multiplication sign and the fraction on the right swaps the numerator and the denominator so 3/6 becomes 6/3
so it will then be 2/3 x 6/3 and you get your answer
thats how you divide fractions
