So, 0.5^5 is 0.03125
multiply that by 125 and get your answer.
*3.90625* (4)
just saying, I got the 0.5^5 thing because 5 is the number of half-lives (x) and 0.5 is the rate of loss (or whatever its called).
If it were to gain, you would put 1.5
Answer:
x=31/25
Step-by-step explanation:
3x+4/5=7-2x
Multiply through by 5
5(3x+4/5)=5(7-2x)
15x+4=35-10x
Collecting like terms
15x+10x=35-4
25x=31
x=31/25
1/5, 0.4, 1/2, 0.75
Just convert all of them to decimals first then it should be easy or you .
Answer: 19 ≥ 3z + 1 ≥ - 5
3 and 60 are the extremes while 15 and 12 are the means.
