Question

width of a rectangle is 3/4 of the lenght. perimeter of the rectangle becomes 50cm when the lenghr and width is increasedby 2cm find the width and lenght

Answer 1

Let W be width
Let L be length
and if we need it let P be perimeter
2L+2W=P is formula to find perimeter
W=3/4 * L
P=50 when W+2

so we have

have 2L+(3/4*L+2)=50

Answer 2

oops mistake
2L+2(3/4*L+2)=50

Answer 3

^what he said - I did area instead of perimeter.

Answer 4

W = width, L = length. Perimeter =2W+2L
W=3/4L. P=50 when W and L are incresed by 2.

So...


2(3/4L+2)+2(L+2)=50
(3/2L+4)+(2L+4)=50 Combine like terms.
7/2L+8=50 Subtract 8 from both sides.
7/2L=42 Divide both sides by 7/2.
L=42(2/7)
L=12.
W=3/4(12)
W=9.

Width =9cm and Length = 12cm.

Answer 5

oh i didnt see that the length was also increased by 2 lol