It is 8.525. what u do is 21÷40 and get .525 and then u add the 8 in the front and get 8.525
There are many possible answers.
10:12
15:18
20:24
25:30
30:36
Answer:
not all of them are proportional because they do not all equal the same.
Step-by-step explanation:
Answer:
it will take 7 days
Step-by-step explanation:
0.6×6= 3.6 but 0.6×7=4.2 so instead of it taking 6 days since they didnt finish they need the 7th day to complete it all
Answer: T= 3.54
Step-by-step explanation:
Step 1
Given that
The time period, T, s doirectly proportional to the square root of the length, d, of the pendulum, we have that
T ∝
Introducing the constant of proportionality, we have that
T= K
.
Step 2
When d=6, T=5, K =?
T= K
.
5 = k
5= k x 2.44949
k =5/2.44949
k =2.041
Therefore, when d = 3 , T= ?
T= K
T= 2.041 x 
T= 3.53511≈ 3.54