What is the correct first step for solving the equation 5x + 3 = 8?
a.
subtract 8 from each side.
b.
subtract 5 from each side.
c.
subtract 3 from each side.
d.
divide each side by 3.

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Ответ:

tatyananannanana

08.09.2021

Mathematics

P=0.975^t

Step-by-step explanation:

We know that the general form of the exponential decay formula is

y=A(1-r)^t , where y is final amount remaining after t time, A is the original amount and r is the rate of decay

Now, the ratio of strontium-90 remaining, p , as a function of years, t , since the nuclear accident. $P=\frac{A(1-0.02)^t}{A}=\frac{(0.975)^t}{1}$

Hence, the ratio of remaining since the nuclear accident is P=0.975^t

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What is the correct first step for solving the equation 5x + 3 = 8? a. subtract 8 from each side. b. subtract 5 from each side. c. subtract 3 from each side. d. divide each side by 3.