Concept explainers
In Exercises 21−36, write an equation for the problem and solve the problem.
36. Interior Design Renée's Decorating Service recommends putting a border around the top of the four walls in a dining room that is 3 ft longer than it is wide. Find the dimensions of the room if the total length of the border is 54 ft.
Find the dimensions of the room if the total length of the border is 54 ft.
Dimensions of the room is
Given:
Renee’s Decorative Service recommends putting a border around the top of the four walls in a dining room that is 3 ft. longer than it is wide.
Concept Used:
- Perimeter is the distance around the outside of a shape.
- The formula for the perimeter of a rectangle is, P = length + breadth + length + breadth Or, P = 2(length + breadth).
Calculation:
Length of wall is 3 ft. longer than it is wide.
Let if wide (b) = x
So length (l) = x+3
And the total length of the border (P) =54 ft.
So length (l) = x+3
And wide (b) = x
So, the dimensions of the room is
Chapter 1 Solutions
PRECALCULUS:GRAPHICAL,...-NASTA ED.
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