Saturday

August 30, 2014

August 30, 2014

Posted by **Mona** on Sunday, July 24, 2011 at 9:33pm.

- Math -
**Reiny**, Sunday, July 24, 2011 at 9:49pmoriginal:

2L+ 2W = 46

L+W = 23

new one:

2(L+12) + 2(2W) = 82

2L + 24 + 4W = 82

L + 2W = 29

Subtract the 1st from the 2nd

W = 6

back in the 1st ---> L=17

**original rectangle is 17 by 6**

check: perimeter of original = 34 + 12 = 46

new rectangle is 29 by 12

perimeter of new = 2(29) + 2(12) = 82

**Related Questions**

geometry - the perimeter of a rectangle is 70m. if the width were doubled and ...

basic geometric - 10. a rectangle has width the same as a side of a square whose...

maths - the length of a rectangle is 3 less than 5 times its width. Write a ...

basic geometry - A rectangle has width the same asa a side of a square whose ...

geometric - The perimeter of a rectangular carpet is 70feet. The with is three -...

algebra - Perimeter of a rectangle. The width of a rectangle is three fourths of...

algebra - What is the width of a rectangle with a perimeter of 70 feet if its ...

algebra - The width of a rectangle is three fourths the length. The perimeter of...

College Algrebra Math 133 unti 1 IP 1 - Suppose the width of a rectangle is 5 ...

math,help - help Probblem #6 solve by multiplying through with the common ...