Answer: for one hard cover book it is about $17 and paperback is $13
Step-by-step explanation:
Supplementary means the two angles add up to 180 degrees.
If one of them measures 60 degrees, then the other would be
180-60=120 degrees.
Set as equation of x
2x-5y=15
2x=15+5y
x=(15+5y)/2
set to 0
solve for y
0=(15+5y)/2
0=15+5y
-15=5y
-3 = y
-3 per minute. Decending means going backwards or witch in this case we are talking about negitive numbers
Answer:
18 π
Step-by-step explanation:
area of the whole circle = 81 pi
80/360= 2/9
So 2/9 of the area 81 pi is 18 pi
