Question

PLEASE HELP ME WITH THIS EQUATION

Answer 1

a) In rectangle,

l = 2y ‐ 4

b = x + 3

l = b + 8 ( Given in ques.)

2y - 4 = x + 3 + 8

2y = x + 11 + 4

x = 2y - 15 — (i)

b) In Triangle,

2x + 4y + 6 = 56 (Sum of all sides = Perimeter)

2x + 4y = 50

2(2y – 15) + 4y = 50 ( From (i) )

4y – 30 + 4y = 50

8y = 80 cm

y = 10 cm.

c) Substituting the value of y in (i),

x = 2y – 15

x = 2(10) – 15

x = 20 – 15

x = 5 cm...