Answer:
when the survey was initially conducted the average sales of smartphones was 1.7 million units
Step-by-step explanation:
The average annual sales of smartphones is given by function
Exponential growth function is given by
Where a= initial value
b = growth factor , b= 1+r where 'r' is the growth rate
x is the time period
Now we compare f(x) with P(n)
the value of a= 1.7 that is the initial value.
So we can say, when the survey was initially conducted the average sales of smartphones was 1.7 million units
Answer:
48
Step-by-step explanation:
First you would subtract 9 from 393 which is 384 then you would divide the 384 remaining student among the 8 busses which is 48.
Hope this helps.
Y+x=31, 150x+225y=5100.
y=-x+31
150x+225(-x+31)=5100
-75x=-1875
x=25 (adult tickets are $25)
31-25= 6 (child tickets are $6)
<span>An extraneous solution is a solution, such as that to an equation, that emerges from the process of solving the problem but is not a valid solution to the original problem.
Given the equation:
From the equation, it is obtained that x = 1 and x = -4 are the solutions of the equation.
Now, we substitute x = 1 into the equation as follows:
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As can be see, for x = 1, the equation is undefined.
Now, we substitute x = -4 into the equation as follows:
It can be seen that x = -4 is a valid solution of the orignal equation.
Therefore, x = 1 is an extraneous solution to the equation
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