Answer:
The minimum number of books she must sell to make a profit is 1904.
Step-by-step explanation:
Anna is considering writing and publishing her own book. She estimates her revenue equation as R = 6.37x, and her cost equation as C = 10,071 + 1.08x, where x is the number of books she sells.
So, the condition for no loss-no gain is, C = R
⇒ 10071 + 1.08x = 6.37x
⇒ 5.29x = 10071
⇒ x = 1903.78
Therefore, the minimum number of books she must sell to make a profit is 1904. (Answer)
First, turn the mixed numbers into a improper fraction.
next, find the GCF (greatest common factor)
finally, subtract the numerator, and your done!
P.s. I'm in middle school too. and i get A+ in math
GOOD LUCK!
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Answer: The value of x is 3.5
Explanation:
<u>Equation</u>:
y = 2x - 7
When the equation's Line intersects the x-axis, the value of y shall be always 0
<u>Insert y = 0, to find x intercept</u>
⇒ 0 = 2x - 7
⇒ 2x - 7 = 0
⇒ 2x = 7
⇒ x = 3.5
So coordinates: (x, y) → (3.5, 0)
The output of the function when x=4 is 23
<h3>How to determine the output</h3>
Given the function as;
f(x)=4x+7
We are told to find f ( 4)
This explains that we should substitute the value of x as 4 in the function:
To find the value of the function at x = 4 we have:
If f(x)=4x+7
Then,
Put 4 as a replacement for x, we have:
f ( 4) = 4 ( 4) + 7
Expand the bracket
f ( 4) = 16 + 7
Add the values
f ( 4) = 23
The value of the function is 23
We can see that the value of the function when x is 4 is 23
Thus, the output of the function when x=4 is 23
The complete question is;
For each function what is the output for the given input?
For f(x)=4x+7, find f(4)
Learn more about functions here:
brainly.com/question/2328150
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Answer:
94.50
Step-by-step explanation:
I used a calculator