Answer:
Step-by-step explanation:
Given,
Length (l) = 2(7z + 3) = 14z + 6
Breadth (b) = 5z
Now,
Perimeter of rectangle (P) = 2(l + b)
=2(14z + 6 + 5z)
=2(19z + 6)
=38z + 12
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
Answer:
well the ratio is 1 : 4 so x is 16
Step-by-step explanation:
The answer to your problem is
Step-by-step explanation:
how the elevation of city can be seen below the sea level
