Answer:
≈ 16 g
Step-by-step explanation:
Half life of a radioactive isotope is the time it takes for a quantity of the isotope to be reduced to half of its initial mass.
Therefore;
New mass = Original mass × (1/2)^n, where n is the number of half lives
Thus;
New mass = 125 × (1/2)³
= 125/8
= 15.625
≈ 16 g
Answer:
Step-by-step explanation:
abs(9 - 12) = abs(-3) = 3
abs(-3 + 6) = abs(3) = 3
abs(9 - 12) + abs(-3 + 6) = 3 + 3 = 6
Answer:

Step-by-step explanation:
Let
x ----> the number of lions
y ----> the number f tigers
z ----> the number of zebras
we know that
----> equation A
Remember that


To find out the number of lions, multiply the total animals by the percentage of lions

To find out the number of zebras, multiply the total animals by the percentage of zebras

Substitute the value of x and the value of z in equation A and solve for y



Y=x
basiclaly switch x and y
(x,y) now becomes (y,x)
(0,2) becomes (2,0)
answe ris (2,0) or aA