Answer:
D.) $12n + $8u = 112 ;u = 4 + n
Step-by-step explanation:
Given that :
Cost per new books (n) = $12
Cost per used book (u) = $8
Total revenue earned = $112
store sold 4 more used books than new books
Hence,
Total revenue should be :
Revenue from new books + Revenue from used book = total revenue
Revenue from new books = $12 * n = $12n
Revenue from used books = $8 * n = $8n
$12n + $8u = 112
Number of books sold :
Number of used books sold = 4 + number of new books sold
u = 4 + n
Answer:
1
Step-by-step explanation:
The point at which a line crosses the y-axis is called its y-intercept. It is generally in the form (0, y-int). To find this value, we can plug in 0 for x and then solve for y.
Steps:
y = 9(0)
y = 0
The point at which the graph of y = 9x crosses the y-axis is (0,0).
If there was a mistake somewhere, please do let me know! As I know that the answer I gave above is not on the list of answer choices. I would strongly recommend checking the equation in the original problem once more. :)
What number is the question?