Answer:
17.5
Step-by-step explanation:
y=kx
35=140k
k= 35/140
k= 1/4
y=1/4X
when X=70
y= 1/4*70
y= 17.5
From this, we can see that the total amount of students being asked = 12 + 8 + 6 + 4 = 30.
12 of 30 like rock, in percentages that is 12/30 = 40$
Full circle has 360 degrees.
40% * 360 degrees = 144 degrees
144 degrees should represent rock music on a pie chart.
Hope this helps!
Answer:
Option D. 
Step-by-step explanation:
we have
and 
we know that
To <u>multiply fractions</u> multiply the numerators of the fractions to get the new numerator and multiply the denominators of the fractions to get the new denominator
To <u>divide two fractions</u>, multiply the first fraction by the reciprocal of the second fraction

and
