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niti1409
12.07.2019 •
Mathematics
Write an expression for: the product of 3 and the quantity of a number minus 7
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Ответ:
"The product" immediately suggests multiplication; we're going to be multiplying two quantities together, "3" and "a number minus 7"
"A number" just describes an unknown value, so we'll pick the letter n to be that unknown in our expression. "A number minus 7" then could be written as n - 7.
We can now write the product of 3 and (n - 7) as the expression
3 × (n - 7)
Ответ:
9514 1404 393
(0, 0), (3, 5)
Step-by-step explanation:
When the graph represents direct variation, it passes through the origin (0, 0) and any points that have the same y/x ratio. Here, that ratio is 10/6 = 5/3, so points like (3, 5) and (9, 15) will be on the graph.