Given:
volume of larger cone : 8000 m³
radius of larger cone: 5 m
radius of smaller cone: 2 m
volume of smaller cone: ?
Find the volume of the smaller cone using the ratio of the volumes.
a / b = c / d where ad = bc
5m / 8000 m³ = 2 m / x
5m * x = 8000 m³ * 2m
5m * x = 16000 m⁴
x = 16000 m⁴ / 5m
x = 3200 m³
Answer:
3
Step-by-step explanation:
Let be t = time to finish
s = average speed
Since is inversely proportional, if t is higher, s lower.
The constant of proportion (k) is
t = k / s
k = t * s
k = 37.5 * 4
k = 150
now that we know k, we can find s for t = 50 seconds
t = k / s
s = k/t
s = 150 / 50
s = 3
Answer:
140°
Step-by-step explanation:
1. full the circle is 360°;
2. YZ+XY=360-80; ⇔ YZ+XY=280;
3. if YZ=XY, then YZ=XY=280/2=140, ⇒ YOZ=140°
1 is false, 2 is true, 3 is false, 4 is false