Question

Can yall help thank you in advance

Answer 1

Explanation:

Perimeter of the deck = (d + 5) + (d + 5) + (d + 5) + (d + 5)

1). By grouping method,

Perimeter = (d + d + d + d) + (5 + 5 + 5 + 5)

2). Perimeter = Number of sides × Length of a side

= 4(d + 5)

3). Expression from problem 1,

Perimeter = (d + d + d + d) + (5 + 5 + 5 + 5)

= 4d + 20

= 4(d + 5)

Expression from problem 2,

Perimeter = 4(d + 5)

Bot the expressions are same.