Nancy is running on a trail that is a 5.3 miles long. After 20 minutes she has ran 1.45 miles. Write an addition equation to fin
1 answer:
The first thing we are going to do for this case is to define a variable.
We have then:
x: number of minutes
y: number of miles traveled.
The equation that models this problem is given by:
(-1.45 / 20): is the speed with which Nancy runs
5.3: is the length of the path.
Answer:
an addition equation to find how much farther Nancy has to run to complete the trail is:
We have then:
x: number of minutes
y: number of miles traveled.
The equation that models this problem is given by:
(-1.45 / 20): is the speed with which Nancy runs
5.3: is the length of the path.
Answer:
an addition equation to find how much farther Nancy has to run to complete the trail is:
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Answer:
8022.
Step-by-step explanation:
Let x be the number of years after 2010.
We have been given a population of fish in a lake is 14000 in 2010. The population decreases 6% annually.
We can see that population of fish is the lake is decreasing exponentially as it is decreasing 6% annually.
Since we know that an exponential function is in form: , where,
a = Initial value,
b = For decrease or decay b is in form (1-r) where r represents decay rate in decimal form.
Let us convert our given decay rate in decimal form.
Upon substituting our given values in exponential form of function we will get the population of fish in the lake after x years as:
Let us find x by subtracting 2010 from 2019.
Upon substituting x=9 in our function we will get,
Therefore, the population of fish in 2019 will be 8022.