Answer:
You are 34 years old
Step-by-step explanation:
Because, 34-17=17
17 is half of 34.
2x+20=y
y-17=0.5y
+17 +17
y=0.5y+17
2(0.5y+17)+20=0.5y+17
y+34+20=0.5y+17
y+54=0.5y+17
y=34
Answer:
13.5 mg
Step-by-step explanation:
Here given Cobalt isotope has half life of 5.3 years.
Initial amount is 50 mg.
Given time(10 years) is roughly equals to two half life.
So, after 5.3 year 25 mg of isotope will left further in next half life only around 12.5 mg remains.
Among options 13.5 mg is the best possible
-18f - 34 - 14f = 11
-32f - 34 = 11
-32f = 45
f = -32/45
Simplify the fraction if needed!
Hope this helps, and please mark brainliest!
