226k views
3 votes
the length of a rectanglr exceeds its width by 5 inches, and the area is 84 square inches. what are the length and width of a a rectangle

2 Answers

1 vote

Answer:

The answer is l=12, w=7

Explanation:

User Shimon Tolts
by
8.2k points
6 votes

The area is the product of length and width, which is to say that the length and width are factors of the area.

Assuming the dimensions are integers, you want factors of 84 that differ by 5.

... 84 = 1×84 = 2×42 = 3×28 = 4×21 = 6×14 = 7×12

The last of these pairs differ by 5, so ...

  • the length is 12 inches
  • the width is 7 inches.
User Jrabary
by
8.2k points

Related questions