How do I solve this because I don’t know where to start
1 answer:
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Answer:
1/5 × 950
(2nd option)
Step-by-step explanation:
So 20% of 950 = 1/5 × 950
Answer:
Step-by-step explanation:
In this problem we have a exponential function of the form
where
f(x) is the remaining mass of the element in grams
x is the time in minutes
a is the initial value (y-intercept of the exponential function)
b is the base
r is the rate
In this problem we have
---> is negative because is a decay's rate
substitute
The exponential function is equal to
For x=15 minutes
substitute in the function