We can write one fifth as
7 times of w , we can write as = 7w
Now we have to subtract one fifth from seven times of w.
So we can write it in algebraic expression as
Answer:
14) y = 81
15) n = 6
Step-by-step explanation:
14)
54:30 = y:45
cross multiply: 45(54) = 30y, so y = 81
15)
6:3 = 12:n
cross multiply: 12(3) =6n, so n = 6
The area of the rectangle calculate using the algebraic model given is 84 m²
<u>Given the algebraic representation </u><u>for</u><u> </u><u>the area of a rectangle</u> :
- Area of rectangle = 6x² + 9x + 3
<u>The Area of the rectangle when x = 3 can be calculated thus</u> :
Substitute the value x = 3 into the equation :
x = 3
Area of rectangle = 6(3)² + 9(3) + 3
Area of rectangle = 54 + 27 + 3 = 84 m²
Therefore, the area of the rectangle is 84 m²
Learn more :brainly.com/question/18112348
Based on the given texts in the table about the graph of the function, the true statements are:
- The graph crosses the y-axis at (0,-15).
- The graph has a point of discontinuity at x = -2.
- The graph is increasing over the interval (4, ∞o).
- The domain of the function is all real numbers.
<h3>Which statements are true of the graph of the function?</h3>
The function, 4x - 15 shows that 15 is the y-intercept which means that the graph will cross the y-axis at (0,15).
The point of discontinuity is x = - 2 and we see this with the gap created at x < -2 and -2 ≤ x ≤ 4.
The graph is indeed increasing over the interval (4, ∞o) because any value of x that is greater than 4 will increase f(x) = .
The domain of the function is also all real numbers as it begins at negative infinity and ends at infinity, (-∞, ∞).
Find out more on point of discontinuity at brainly.com/question/9553665.
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