Answer:
a.2:7
b.7:9
c.4:5
hope it helps
Explanation -
a. as original ratio is 10/35 , we reduce it to 2:7.
b. as original ratio is 35/45 , we reduce it to 7:9
c. as original ratio is 40:50 , we reduce it to 4:5
Area of sector = 1/2 * r^2 * x where r = radius and x = angle in radians
86 = 1/2 * r^2 * pi/4
r^2 = 2 * 86 * 4 / pi = 219
r = sqrt 219
= 14.80
The answer is c. Because there are 3 times more blank marbles than white marbles.
Answer:
18x+9=9y
Step-by-step explanation:
16x+9=9y-2x
+2x +2x
18x+9=9y
