The answer should be A. In order to solve these half-life problems, I encourage you to find an algebra calculator online, and plug in these numbers. The remaining grams goes in front, so 3.
The entire equation should look something like 3 = 15(1/2)^t/4.95
The 4.95 represents how long it takes before the sample halves, t is your answer, 1/2 represents the value halving every 4.95 hours, 15 is the initial sample size, and 3 is the end result that remains.
The overall answer should be about 11.5 hours, as per an algebra calculator.
Hope this helps solve any other similar problems
P = 2L+2W
L = 2W +1
W = 2W
68 = 2(2w +1) + 2W
68 = 4W + 2 2w
66 = 6w
Length = 23 ft
Width = 11 ft
Answer:
t = 13
Step-by-step explanation:
Since this is an isosceles triangle, AC = BC
So you can from the equation:
2t + 5 = 3t - 8
t = 13
The correct inequalities that alana wrote is
B) 0> -34
D) -80< 12
Answer:
30.4
Step-by-step explanation:
8 boxes = 243.20
find 1 boxes
= 243.20 ÷ 8
= 30.40 / 30.4