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anonymous
 one year ago
Suppose you want to build a deck around your pool with a uniform width on all sides. The pool measures 15 yards by 20 yards. You want to increase the area of the pool to 600 yd2. What is the width of the deck?
Approximately 3.6 yards
Approximately 4.5 yards
Approximately 5.1 yards
Approximately 6.7 yards
anonymous
 one year ago
Suppose you want to build a deck around your pool with a uniform width on all sides. The pool measures 15 yards by 20 yards. You want to increase the area of the pool to 600 yd2. What is the width of the deck? Approximately 3.6 yards Approximately 4.5 yards Approximately 5.1 yards Approximately 6.7 yards

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anonymous
 one year ago
Best ResponseYou've already chosen the best response.0@Loser66 i am lost..

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0the pool a rectanlge im guessing? and i know that the area of the pool (15*20) is 300, and that it need to be doubled to get 600?

BioHazard9064
 one year ago
Best ResponseYou've already chosen the best response.2Approximately 3.6 yards

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0how? i wanna know please

Loser66
 one year ago
Best ResponseYou've already chosen the best response.0Let's wait for @BioHazard9064

BioHazard9064
 one year ago
Best ResponseYou've already chosen the best response.2(20 + 2X) * (15 + 2X) = 600 300 + 40X + 30X + 4X^2 = 600 300 + 70X + 4X^2 = 600 4X^2 + 70X  300 = 0

Loser66
 one year ago
Best ResponseYou've already chosen the best response.0Too many guidance will confuse you. :)

BioHazard9064
 one year ago
Best ResponseYou've already chosen the best response.2although I agree drawing a graph would help a lot for a start

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0okay, but how is it 3.6?

BioHazard9064
 one year ago
Best ResponseYou've already chosen the best response.2600  300 = 300. We need 300 square yards of deck

BioHazard9064
 one year ago
Best ResponseYou've already chosen the best response.2So if we let x = the width

BioHazard9064
 one year ago
Best ResponseYou've already chosen the best response.2so then you do 300 = 3x^2 + 70x.

BioHazard9064
 one year ago
Best ResponseYou've already chosen the best response.2Then you use it in a quadratic equation with a =4, b=70 and c= 300 to get x = 3.56 so you would round it up to 3.6

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0yes i do. sorry, was distracted lol
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