Answer: d3< d10>
Step-by-step explanation:
For the first one it is 49 and for the second one it is 14
Answer:

Step-by-step explanation:
Total number of students
Students wearing brown shoes
Students wearing black shoes
Number of students wearing black or brown shoes
Number of students not wearing brown or black
Fraction of students not wearing brown or black
Step-by-step explanation:
a, 1/4+2/5=13/20
b,-1/8+1=7/8
c, 4/25×-1/8=-1/50
d, 2×1/9-1/2=2/9-1/2=-5/18
e, 1+2/5-1/4=7/5-1/4=23/20
Answer: 14.32 degrees
The circle has a diameter of 8 kilometers, so the perimeter would be:
perimeter= pi * diameter
perimeter= 22/7 * 8 kilometers= <span>25.14 kilometers
A full perimeter </span>of the circle, which is 25.14km, has 360° angle. So 1km arc would be: 1km/ 25.14 km * 360°= 14.32°