Since its multiplication you don't have to have a common denominator so you multiply straight across. The answer is 48/36.
.35 is the answer because when you write it as a fraction
7/20we know that 20 equals 100we get 100by multiplying 20 by 5 do you just multiply 7by5 which equals 35 over 100 which equals .35.please follow me on brainly
Answer:
28%
Step-by-step explanation:
You would do 20 • 3=60 and the you would add 20 • 1/5=4 so, your total is 64in.
That is exactly 8 half lives.
After 8 half - lives only (1 / 2^8) or (1 / 256) of the original 30 grams will remain.
(1 / 256) =
<span>
<span>
<span>
0.003906250
</span>
</span>
</span>
So, 30 * <span>
<span>
0.003906250 = </span></span>
<span>
<span>
<span>
0.1171875 grams will remain.
</span></span></span>
