Question

The perimeter of the rectangle is 56 cm. Find the value of x.
10 cm
3x cm

Answer 1

56-10=46. 46 divided by 3=15.3 with the 3 repeating

Answer 2

Answer: x = 6

Explanation:

P = 2(l + w)
56 = 2(3x + 10)
56 = 6x + 20
56 - 20 = 6x
36 = 6x
36/6 = x
6 = x

Therefore, x = 6