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mart [117]
2 years ago
7

Plzzzzzzzzhellpppppppmeeee please! We will be besties if ur2 help me!

Mathematics
1 answer:
lisov135 [29]2 years ago
8 0

Answer:

d. y=-1; x=7

Step-by-step explanation:

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3 years ago
A rectangular building has a perimeter of 208 meters. It’s area is 2415 square meters. What are the dimensions of the building?
Zepler [3.9K]

Answer:

Step-by-step explanation:

Perimeter of rectangle = 208 m

2*(l + w) = 208  {divide both sides by 2}

l +w = 208/2

l +w = 104

l = 104 - w

Area of rectangle = 2415 square meters

l*w = 2415

Substitute l = 104 - w in the above equation,

(104 - w ) *w = 2415

104w - w² = 2415

0 = 2415 - 104w + w²

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Sum = -104

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Factors = (-69) , (-35)

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(w -35)(w -69)

w - 35 = 0    ; w  -69 = 0

w = 35    ; w = 69

The dimensions of the building: 35 , 69

7 0
3 years ago
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