Answer:
Step-by-step explanation:
Solve for z. Isolate the z. Note the equal sign. What you do to one side, you do to the other side.
Subtract 4/5 from both sides
z + 4/5 (-4/5) = 11 (-4/5)
z = 10 5/5 - 4/5
Simplify
z = 10 1/5
10 1/5 is your answer for z
hope this helps
Answer:
270
Step-by-step explanation:
Area is length times width; 15 times 18 = 270
Answer:
1) 62.5
2) 50
3) 75
4) 100
Step-by-step explanation:
1)
Because it has a half-life of 25 days, half of it will decay after 25 days.
After
days, there will be
of it left.
So,
.
2)
Because it has a half-life of 25 days, half of it will decay after 25 days.
After
days, there will be
of it left.
So, 
3)
Because it has a half-life of 25 days, half of it will decay after 25 days.
After
days, there will be
of it left.
So,
.
4)
The only answer left is
grams. You can solve it the same way you solved the previous steps.