True because it is 19 out of 100. If it were 19% and 19-50 that would be false because the answer to that one would be 9.5. So the answer is true.
Answer:
1). 
= (200 - 
)
2). Inverse function represents the age of the client and 'x' represents the maximum heart rate of the client.
Step-by-step explanation:
Function representing the maximum heart rate is,
f(x) = 0.85(220 - x)
Here x = age of the client
Equation form of the function will be,
y = 0.85(220 - x)
To get the inverse of the given function, replace 'x' by 'y' and 'y' by 'x' and solve for y.
x = 0.85(220 - y)
220 - y =
y = 220 -
Now convert this equation into a function.
= (200 - )
Here inverse function represents the age of the client and 'x' represents the maximum heart rate of the client.
The amount Aiden would have to pay in a month where he used went over by x GB is (25 + 10x)
<h3>Equation</h3>
- Cost if data plan (2gb) = $25
- Additional cost per GB = $10
- Number of additional gb = x
Total cost = 25 + 10x
- If he used 2 GB over the limit
Total cost = 25 + 10(2)
= 25 + 20
= $45
Therefore, the amount Aiden would have to pay in a month where he used went over by x GB is (25 + 10x)
Learn more about equation:
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Let us assume that cost of each granola bar be $x and that of a cup of yogurt be $y
From person A's purchase, we get
12x + 7y = 15.5; equation A
And from person B's purchase,
6x + 11y = 11.5; equation B
Let us multiply equation B by 2 and subtracting equation A from it, we will get
12x + 22y - 12x - 7y = 23 - 15.5,
=> 15y = 7.5
or, y = 0.5
Substituting value of y in equation A, we can find x
12x + 7*0.5 = 15.5
=> x = (15.5 - 3.5)/12
or, x = 1
Therefore, cost of granola bar is $1, and that of yogurt is $0.5
