Answer:
12/5
Step-by-step explanation:
the answer can be found by multiplying the whole number, 2, by the denominator of 5, then adding it to the numerator to get 12.
Answer:
31.0 grams.
Step-by-step explanation:
According to the given information
Half-life of a substance = 37 years
Initial amount = 202 gram
The exponential function for half-life of a substance is
where, A₀ is initial amount, t is time and h is half life.
Substitute A₀=202 and h=37 in the above function.
We need to find the amount of the substance remaining after 100 years.
Substitute t=100 in the above function.
Round the answer to the nearest tenth.
Therefore, the amount of the substance remaining after 100 years is 31.0 grams.
Answer:
It will take 2 hours, 13 minutes and 20 seconds for both pipes to fill the pool.
Step-by-step explanation:
Given that an inlet pipe can fill an empty swimming pool in 5hours, and another inlet pipe can fill the pool in 4hours, to determine how long it will take both pipes to fill the pool, the following calculation must be performed:
1/5 + 1/4 = X
0.20 + 0.25 = X
0.45 = X
9/20 = X
9 = 60
2 = X
120/9 = X
13,333 = X
Therefore, it will take 2 hours, 13 minutes and 20 seconds for both pipes to fill the pool.
Answer:
y = 240 cm crawl
x = 120 cm walking
Step-by-step explanation:
Logic....
Answer:
I think it is B
Step-by-step explanation:
