Wednesday

October 1, 2014

October 1, 2014

Posted by **Brian** on Monday, November 19, 2012 at 2:18pm.

- Algebra -
**Reiny**, Monday, November 19, 2012 at 2:27pmwidth --- x

length ---- 2x + 5 (assuming your 5y is a typo)

x(2x+5) = 42

2x^2 + 5x - 42 = 0

(x+6)(2x-7) = 0

x = -6 or x = 7/2 , but the width cannot be negative, so

the width is 7/2 or 3.5

the length is 12

check:

3.5(12) = 42

**Answer this Question**

**Related Questions**

Math - How do I find the dimensions of a rectangle if the length of the ...

math - a rectangle is twice as long as it is wide. if both of its dimensions are...

Algebra - the length of a rectangle is 5m more than twice its width. and the ...

beginning algebra - The length of a rectangle is 1ft more than twice its width, ...

Algebra - The length of a rectangle is 1ft. more than twice the width, and the ...

math - the length of a rectangle is 3 yds more than twice it width and the area ...

math - the length of a rectangle is 5 ft more than twice the width. a)if x ...

MATH0098 - The length of a rectangle is 3ft more than twice its width, and the ...

Math - The length of a rectangle is 2 more than twice its width. If the area of ...

Algebra - The length of a rectangle is more than double the width, and the area...