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DIA [1.3K]
3 years ago
10

Jamal is building a rectangular deck. The length of the deck willbe one foot onger than twice the width. The deck will be attach

ed to Jamal's house on one of its longer side and a railing will be attached to the other side. Jamal calculates that he will need 49 feet of railing. What are the dimensions of the deck?
Mathematics
1 answer:
Vilka [71]3 years ago
7 0

Answer:

25 feet  by  12 feet

Step-by-step explanation:

Width of deck = w

Length of deck = 2w + 1---------------------------- (1)

Length of railing  =  w + w + 2w +1

                            =   4w + 1---------------------------------- (2)

Length of railing =  49

Solving equation (2)

4w + 1 = 49

 4 w = 49-1

 4w = 48

   w = 48/4

   w = 12

   Substituting into equation (1)

Length of deck = 2 (12) + 1

                         = 24+1

                         = 25 feet

Width of deck = 12 feet

The dimension of the deck = l x  w

                                             = 25 feet  by  12 feet

NB: The railing comprises  two widths of the deck , plus one length of the deck since the other length is attached to the house.

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