The width of a rectangle is 3
4
the length. The perimeter is
252 cm. What is the width of the rectangle?
A) 36 cm
B) 48 cm
C) 54 cm
D) 72 cm
Can someone help me please?
3 answers
*The width of a rectangle is 3/4
2 * width + 2 * length = perimeter
so
2*w + 2 * 4w/3 = 252
w + 4w/3 = 126
7 w/3 126
w = 3 * 126/7
so
2*w + 2 * 4w/3 = 252
w + 4w/3 = 126
7 w/3 126
w = 3 * 126/7
the answer is 54
126/7 simplified is 18.
18 x 3 is 54
126/7 simplified is 18.
18 x 3 is 54
6 answers