Answer:
Medbay
Step-by-step explanation:
Answer:
2.60 gr
Step-by-step explanation:
We need to consider the function where Po is the initial substance k is the rate of decay and t is the time
We know that and at the 7 th year P(t) is 7
This means
We solve for k
The answer is D a parallelogram with four congruent angles
Answer:
1. First method : Since,
⇒
Thus, 40 % of 60
=
Second method: (Pictorial model)
When we want get any % of 60,
Then,
⇒
⇒
2. First method :
Let the number is x,
Since,
⇒
Thus, 15 % of x = 30
Second method: (Pictorial model)
Therefore, answer is 200.
well, let's split the hours in minutes, so since 1 hr is 60 minutes, so he can walk 2.833 miles in 60 minutes, well, 3 hrs is 3*60 = 180 minutes, then we add 15 minutes, that's 195 minutes.
if he can walk 2.833 miles in 60 minutes, how long will it be for 195 minutes?