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mel-nik [20]
3 years ago
10

What is the solution to the inequality 15y-9<36

Mathematics
1 answer:
artcher [175]3 years ago
6 0

Answer:

\boxed{y

Step-by-step explanation:

15y - 9 < 36               <em>add 9 to both sides</em>

15y < 45                <em>divide both sides by 15</em>

y < 3

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Answer:

Step-by-step explanation:

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Rectangle 1 has length x and width y. Rectangle 2 is made by multiplying each dimension of Rectangle 1 by a factor of k, where k
tresset_1 [31]

Answer:

a) Similar

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Step-by-step explanation:

Given:

Rectangle 1 has length = x

Rectangle 1 has width = y

Rectangle 2 has length = kx

Rectangle 2 has width = ky

(a) Are Rectangle 1 and Rectangle 2 similar? Why or why not?

Rectangle 1 and Rectangle 2 are similar because the angles of both rectangles are 90° and the sides of Rectangle 2 is k times the sides of Rectangle 1. So sides of both rectangles is equal to the ratio k.

(b) Write a paragraph proof to show that the perimeter of Rectangle 2 is k times the perimeter of Rectangle 1.

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Perimeter of Rectangle 2 = 2*(kx+ky) = 2kx + 2ky

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Hence proved that Perimeter of rectangle 2 is k times the perimeter of rectangle 1.

(c) Write a paragraph proof to show that the area of Rectangle 2 is k^2 times the area of Rectangle 1.

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Area of Rectangle 1 = x * y

Area of Rectangle 2 = kx*ky

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                                  = k^2 (Area of rectangle 1)

Hence proved that area of rectangle 2 is k^2 times the area of rectangle 1.

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