Concept explainers
a.
To calculate: The area of the existing patio.
a.
Answer to Problem 16Q
The required area of the existing patio is 600 square feet.
Explanation of Solution
Given information:
The amount of area to the area of the patio by expanding the existing patio = 464 square feet
Calculation:
The area of the existing patio is:
Hence, the required area of the existing patio is 600 square feet.
b.
To write: An equation to model the area of the new patio.
b.
Answer to Problem 16Q
The required equation is
Explanation of Solution
Given information:
The amount of area to the area of the patio by expanding the existing patio = 464 square feet
Calculation:
The area of the existing patio is:
The given difference between the area of the extended area
Hence, the required equation is
c.
To calculate: The distance x for which the length of the patio should be expanded.
c.
Answer to Problem 16Q
The required distance x for which the length of the patio should be expanded is 8 feet.
Explanation of Solution
Given information:
The amount of area to the area of the patio by expanding the existing patio = 464 square feet
Formula used:
Calculation:
The area of the existing patio is:
The given difference between the area of the extended area
Solve the above equation for x by using the quadratic formula
Solve for x .
And,
But the distance cannot be negative.
So,
Hence, the required distance x for which the length of the patio should be expanded is 8 feet.
Chapter 3 Solutions
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