Answer:
The rate of decrease is 8%
Step-by-step explanation:
we know that
The general equation for the radioactive decay can be written as:
where
a is the amount in kilograms after time t.
a_0 is the original amount of the substance or y-intercept of the function
r is the decay rate, written in decimals.
t is the time
In this problem we have
so
solve for r
Convert to percentage
The temperature is 86°F when the temperature is 30°C.
Step-by-step explanation:
Formula for Celsius to Fahrenheit;
F =
Where C stands for temperature in degrees Celsius.
Given,
Temperature in Celsius = 30 degrees
Temperature in Fahrenheit =
Temperature in Fahrenheit =
Temperature in Fahrenheit =
The temperature is 86°F when the temperature is 30°C.
Keywords: temperature, addition
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