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April 17, 2014

April 17, 2014

Posted by **Michelle** on Thursday, May 27, 2010 at 6:43pm.

A)

340

B)

74

C)

135

D)

900

- math-DUE TONIGHT PLEASE HELP -
**Reiny**, Thursday, May 27, 2010 at 6:58pmlet the width be x

let the length be y

so we know 2x + 2y = 54

x + y = 27

and y = 27-x

new width = x+5

new length = y+5 = 27-x + 5 = 32-x

Isn't area = length x width ?

old garden:

x(27-x) = 180

-x^2 + 27x - 180 = 0

x^2 - 27x + 180 = 0

(x-15)(x-12) = 0

x = 15 or x = 12

then y = 12 or y = 15 (symmetric solution)

so the garden was 15 by 12

take it from there

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