the length of a rectangle is 8 centimeters more than its width. the perimeter is 68cm. Find the length and width of the rectangle.

Step-by-step explanation:

L = w+8

68 = 2*w + 2*L

68 = 2*w + 2*(w+8)

68 = 2w + 2w+16

52 = 4w

13 = w

width = 13 cm

L = 13+8

L = 21 cm

529 and 531

step-by-step explanation:

if y=4x then you will substitute 4x in for y in the second equation.

8x + 4x = 18 combine like terms

12x = 18 divide by 12 on both sides

x = 18/12 or 3/2

now replace x in the first equation with 3/2 to get

y = 4 3/2

y = 6

the answer is a

(3/2,6)

hope that .

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