/*! This file is auto-generated */ .wp-block-button__link{color:#fff;background-color:#32373c;border-radius:9999px;box-shadow:none;text-decoration:none;padding:calc(.667em + 2px) calc(1.333em + 2px);font-size:1.125em}.wp-block-file__button{background:#32373c;color:#fff;text-decoration:none} Problem 66 A rectangular swimming pool meas... [FREE SOLUTION] | 91Ó°ÊÓ

91Ó°ÊÓ

A rectangular swimming pool measures 14 feet by 30 feet. The pool is surrounded on all four sides by a path that is 3 feet wide. If the cost to resurface the path is \(\$ 2\) per square foot, what is the total cost of resurfacing the path?

Short Answer

Expert verified
The total cost of resurfacing the path is \$600.

Step by step solution

01

Calculate the total area

First, calculate the total area, including the pool and the path that surrounds it. The path is 3 feet wide on all sides, so add this to all sides of the pool. This makes the large rectangle dimensions 14 feet + 3 feet + 3 feet = 20 feet (width) and 30 feet + 3 feet + 3 feet = 36 feet (length). The area for a rectangle is calculated by multiplying the width by the length. So, the total area is \(20 \, feet \times 36 \, feet = 720 \, square \, feet\).
02

Calculate the area of the pool

The area of the rectangular pool is calculated by multiplying its width by its length, i.e., \(14 \, feet \times 30 \, feet = 420 \, square \, feet\).
03

Calculate the area of the path

Now, subtract the area of the pool from the total area calculated in step 1. This will give us the area of the path alone. So, the area of the path is \( 720 \, square \, feet - 420 \, square \, feet = 300 \, square \, feet\) .
04

Calculate the total cost to resurface the path

Finally, to find the total cost to resurface the path, multiply the area of the path by the cost per square foot. \(300 \, square \, feet \times \$2 = \$600\)

Unlock Step-by-Step Solutions & Ace Your Exams!

  • Full Textbook Solutions

    Get detailed explanations and key concepts

  • Unlimited Al creation

    Al flashcards, explanations, exams and more...

  • Ads-free access

    To over 500 millions flashcards

  • Money-back guarantee

    We refund you if you fail your exam.

Over 30 million students worldwide already upgrade their learning with 91Ó°ÊÓ!

Key Concepts

These are the key concepts you need to understand to accurately answer the question.

Understanding Area Calculation
When tackling geometry problems involving area calculation, it's important to first grasp the core components. In this exercise, we are essentially calculating the areas of two rectangles: the larger rectangle inclusive of the pool and path, and the smaller rectangle which is just the pool itself.
To calculate the area of a rectangle, you use the formula: - \(\text{Area} = \text{width} \times \text{length}\)- For the pool itself, the dimensions are 14 feet by 30 feet, which means its area is \(14 \, \text{feet} \times 30 \, \text{feet} = 420 \, \text{square feet}\).
For the larger rectangle (the pool plus the path), the width and length both increase by twice the path's width (since the path is on all sides). Hence, the area calculation involves: \(20 \, \text{feet} \times 36 \, \text{feet} = 720 \, \text{square feet}\). Understanding how to effectively use area formulas is key to finding the solution to problems like these.
Calculating Cost Estimation
Cost estimation in geometry problems involves calculating the expenses based on the physical dimensions of a given area. Here, we are determining how much it will cost to resurface the path around the pool by knowing the area and the cost per square foot.
Once you've calculated the area of the path, you multiply it by the cost per square foot for the resurfacing. Using the formula for cost, you have:
  • \(\text{Cost} = \text{Area} \times \text{Cost per square unit}\)
Given that the path's area equals 300 square feet and the cost of resurfacing is \( \\(2 \, \text{per square foot} \), the total cost is \(300 \, \text{square feet} \times \\)2 = \$600\). This offers a practical and direct way to calculate how budget impacts geometric shapes in real-world scenarios.
Exploring Rectangular Pool Dimensions
Rectangular pool dimensions are a critical aspect of numerous geometric calculations. The exercise provided requires understanding how changes in dimensions affect total area and related calculations.
A rectangular shape is defined by its width and length, in this case, the pool measures 14 feet by 30 feet. Knowing these dimensions allows us to calculate the area, which informs subsequent calculations such as for surrounding paths. Converting dimensional changes into calculations involves simply adding values to the original dimensions for extensions like a path.
Here, the wider path effectively extends dimensions from 14 to 20 feet and 30 to 36 feet for width and length respectively. This forms the basis for another essential area calculation of a larger encompassing rectangle. Recognizing how these changes affect other components is vital for clear, precise problem-solving in geometry.

One App. One Place for Learning.

All the tools & learning materials you need for study success - in one app.

Get started for free

Most popular questions from this chapter

The hour hand of a clock moves from 12 to 5 o'clock. Through how many degrees does it move?

In Exercises 49-50, express the required calculation in terms of \(\pi\) and then round to the nearest tenth. How much fencing is required to enclose a circular garden whose radius is 20 meters?

How do you determine whether or not a graph is traversable?

Angles play an important role in custom bikes that are properly fitted to the biking needs of cyclists. One of the angles to help find the perfect fit is called the hip angle. The figure indicates that the hip angle is created when you're sitting on the bike, gripping the handlebars, and your leg is fully extended. Your hip is the vertex, with one ray extending to your shoulder and the other ray extending to the front-bottom of your foot. The table indicates hip angles for various biking needs. Use this information to pedal through. $$ \begin{array}{|l|l|} \hline \text { Hip Angle } & \text { Used For } \\ \hline 85^{\circ} \leq \text { hip angle } \leq 89^{\circ} & \text { short- distance aggressive racing } \\ \hline 91^{\circ} \leq \text { hip angle } \leq 115^{\circ} & \text { long- distance riding } \\ \hline 116^{\circ} \leq \text { hip angle } \leq 130^{\circ} & \text { mountain biking } \\ \hline \end{array} $$ Which type or types of biking require an obtuse hip angle?

Determine whether each statement makes sense or does not make sense, and explain your reasoning. If a polygon is not regular, I can determine the sum of the measures of its angles, but not the measure of any one of its angles.

See all solutions

Recommended explanations on Math Textbooks

View all explanations

What do you think about this solution?

We value your feedback to improve our textbook solutions.

Study anywhere. Anytime. Across all devices.