18 mile per hour
Step-by-step explanation:
average speed = total distance covered by total time taken
so, avg. speed = ( 2+ 7 ) / ( 20 + 10 )
= 9 / 30
= 3 / 10
= 0.3 miles per minute
= 18 mile per hour
Answer:
Step-by-step explanation:
3.
The formula of a volume of a sphere:
R - radius
We have R = 3.15 m. Substitute:
4.
The formula of a volume of a cone:
r - radius
H - height
We have 2r = 11.6 → r = 5.8 and H = x. Substitute:
6.
The formula of a volume of a cube:
s - edge
We have s = 1.02 in. Substitute:
Answer:
Step-by-step explanation:
16 x 28% = 4.48
16 x 72% = 11.52
16 x 172% = 27.52
16 x 128% = 20.48
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I dont know for the second one, sorry-
5 5/6 + 5 4/5 =
5 + 5 = 10
5/6 + 4/5 = 25/30 + 24/30 = 49/30 = 1 19/30
10 + 1 19/30 = 11 19/30 <==
Answer:
3 (equalateral)
Step-by-step explanation: