SOLUTION: The Length of a rectangle is 4 less than 3 times the width. if the perimeter is 40, find the dimensions of the rectangle
Algebra.Com
Question 1036382: The Length of a rectangle is 4 less than 3 times the width. if the perimeter is 40, find the dimensions of the rectangle
Answer by addingup(3677) (Show Source): You can put this solution on YOUR website!
L = 3W-4
and
2L+2W = 40 Substitute for L:
2(3W-4)+2W = 40
6W-8+2W = 40
8W = 48
W = 6 This is the width, and the Length:
L = 3(6)-4 = 14
```````````````````````````````````````````````
Check:
2(6)+2(14)= 40
12+28 = 40 Correct.
RELATED QUESTIONS
The length of a rectangle is 4 less than 3 times the width. If the perimeter is 40, find... (answered by awang1996)
The length of a rectangle is 4 less than 3 times the width. If the perimeter is 40, find... (answered by ankor@dixie-net.com)
A rectangle has a perimeter of 56cm. The length is 4 less than 3 times width. Find its... (answered by MathLover1)
The perimeter of a rectangle is 52 inches. If the length of the rectangle is 9 inches... (answered by JBarnum)
The length of a rectangle is 4 cm less than 3 times the width. if the perimeter is 88 cm, (answered by rfer)
the perimeter of a rectangle is 164 feet. the length is 3 feet less than 4 times the... (answered by ewatrrr)
The length of a rectangle is 4 inches less than 3 times the width and the perimeter is... (answered by ptaylor)
The length of a rectangle is 7 inches less than 3 times the width. If the area of the... (answered by ewatrrr)
A rectangle has a length that is 2 less than 3 times the width, if the area of this... (answered by TimothyLamb)