Wednesday

April 16, 2014

April 16, 2014

Posted by **Casey** on Thursday, December 6, 2012 at 10:11pm.

- Math -
**Steve**, Thursday, December 6, 2012 at 10:41pm(6+x)(5+x) = 3*(6*5)

x^2 + 11x + 30 = 90

x^2 + 11x - 60 = 0

(x+15)(x-4) = 0

x = 4 -- we like positive dimensions

check: (6+4)(5+4) = 90 = 3*30

**Related Questions**

Math - A rectangle has a width of 4 cm and a height of 3 cm. If another ...

math - The perimeter of the rectangle is 24 cm, the long side is x + 2, the ...

math - The width of a rectangle is 6 cm less than the length. A second rectangle...

math - A rectangle has a perimeter of 42 cm. One of its sides is 11 cm long. ...

Algebra 1 - This is a five step problem: The width of a rectangle is 6 cm less ...

Algebra - A rectangle was 25 cm longer than it was wide. A new rectangle was ...

Algebra/geometry - a rectangle has a width of 4 cm less than it's length. if a ...

geometry - An angle bisector of a triangle divides the opposite side of the ...

Math -please check me - what is the perimeter of a rectangle if the length is 5/...

Math - A rectangle has a measurement of 15 cm long and 9 cm wide. Label another ...