Pre-Algebra Student Edition
Pre-Algebra Student Edition
1st Edition
ISBN: 9780078957734
Author: Glencoe/McGraw-Hill
Publisher: MCG
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Concept explainers

Unitary Method
The word “unitary” comes from the word “unit”, which means a single and complete entity. In this method, we find the value of a unit product from the given number of products, and then we solve for the other number of products.
Speed, Time, and Distance
Imagine you and 3 of your friends are planning to go to the playground at 6 in the evening. Your house is one mile away from the playground and one of your friends named Jim must start at 5 pm to reach the playground by walk. The other two friends are 3 …
Profit and Loss
The amount earned or lost on the sale of one or more items is referred to as the profit or loss on that item.
Units and Measurements
Measurements and comparisons are the foundation of science and engineering. We, therefore, need rules that tell us how things are measured and compared. For these measurements and comparisons, we perform certain experiments, and we will need the experime…
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Question
Book Icon
Chapter 13.5, Problem 20STP
To determine

To find:The number of CDs have a playing time of at least 50 minutes.

Expert Solution & Answer
Check Mark

Answer to Problem 20STP

The number of CDs have a playing time of at least 50 minutes is: 17

Explanation of Solution

Giveninformation:

The given table shows the amount of playing time for different CDs from Janet's CD collection.

  Pre-Algebra Student Edition, Chapter 13.5, Problem 20STP , additional homework tip 1

A completed histogram is given below. It is required to find how many CDs have a playing time of at least 50 minutes.

The histogram is as follows:

  Pre-Algebra Student Edition, Chapter 13.5, Problem 20STP , additional homework tip 2

The heights of bar represent the number of CDs. Add them to find the total number of CDs. For interval 40-44, 45-49, 50-54, 55-59,60-64 and 65-69 minutes, the number of CDs for time 50-54, 55-59, 60-64 and 65-69 respectively. Figure 13.5-20STP shows that for 17 CDs of Janet, the playing time is at least 50 minutes.

Therefore, the answer is: 17

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Chapter 13.5, Problem 19STP
Next
Chapter 13.5, Problem 21SR

Chapter 13 Solutions

Pre-Algebra Student Edition

Ch. 13.1 - Prob. 1GPCh. 13.1 - Prob. 2GPCh. 13.1 - Prob. 3GPCh. 13.1 - Prob. 4GPCh. 13.1 - Prob. 1CYUCh. 13.1 - Prob. 2CYUCh. 13.1 - Prob. 3CYUCh. 13.1 - Prob. 4CYUCh. 13.1 - Prob. 5CYUCh. 13.1 - Prob. 6PPS
Ch. 13.1 - Prob. 7PPSCh. 13.1 - Prob. 8PPSCh. 13.1 - Prob. 9PPSCh. 13.1 - Prob. 10PPSCh. 13.1 - Prob. 11PPSCh. 13.1 - Prob. 12PPSCh. 13.1 - Prob. 13PPSCh. 13.1 - Prob. 14PPSCh. 13.1 - Prob. 15PPSCh. 13.1 - Prob. 16HPCh. 13.1 - Prob. 17HPCh. 13.1 - Prob. 18HPCh. 13.1 - Prob. 19HPCh. 13.1 - Prob. 20HPCh. 13.1 - Prob. 21HPCh. 13.1 - Prob. 22STPCh. 13.1 - Prob. 23STPCh. 13.1 - Prob. 24STPCh. 13.1 - Prob. 25STPCh. 13.1 - Prob. 26SRCh. 13.1 - Prob. 27SRCh. 13.1 - Prob. 28SRCh. 13.1 - Prob. 29SCh. 13.2 - Prob. 1GPCh. 13.2 - Prob. 2AGPCh. 13.2 - Prob. 2BGPCh. 13.2 - Prob. 3AGPCh. 13.2 - Prob. 3BGPCh. 13.2 - Prob. 1CYUCh. 13.2 - Prob. 2CYUCh. 13.2 - Prob. 3CYUCh. 13.2 - Prob. 4CYUCh. 13.2 - Prob. 5PPSCh. 13.2 - Prob. 6PPSCh. 13.2 - Prob. 7PPSCh. 13.2 - Prob. 8PPSCh. 13.2 - Prob. 9PPSCh. 13.2 - Prob. 10PPSCh. 13.2 - Prob. 11PPSCh. 13.2 - Prob. 12PPSCh. 13.2 - Prob. 13PPSCh. 13.2 - Prob. 14PPSCh. 13.2 - Prob. 15PPSCh. 13.2 - Prob. 16PPSCh. 13.2 - Prob. 17HPCh. 13.2 - Prob. 18HPCh. 13.2 - Prob. 19HPCh. 13.2 - Prob. 20HPCh. 13.2 - Prob. 21HPCh. 13.2 - Prob. 22STPCh. 13.2 - Prob. 23STPCh. 13.2 - Prob. 24STPCh. 13.2 - Prob. 25STPCh. 13.2 - Prob. 26SRCh. 13.2 - Prob. 27SRCh. 13.2 - Prob. 28SRCh. 13.2 - Prob. 29SRCh. 13.2 - Prob. 30SCh. 13.2 - Prob. 31SCh. 13.2 - Prob. 32SCh. 13.2 - Prob. 33SCh. 13.3 - Prob. 1AGPCh. 13.3 - Prob. 1BGPCh. 13.3 - Prob. 2GPCh. 13.3 - Prob. 3GPCh. 13.3 - Prob. 4GPCh. 13.3 - Prob. 5GPCh. 13.3 - Prob. 1CYUCh. 13.3 - Prob. 2CYUCh. 13.3 - Prob. 3CYUCh. 13.3 - Prob. 4PPSCh. 13.3 - Prob. 5PPSCh. 13.3 - Prob. 6PPSCh. 13.3 - Prob. 7PPSCh. 13.3 - Prob. 8PPSCh. 13.3 - Prob. 9PPSCh. 13.3 - Prob. 10PPSCh. 13.3 - Prob. 11PPSCh. 13.3 - Prob. 12HPCh. 13.3 - Prob. 13HPCh. 13.3 - Prob. 14HPCh. 13.3 - Prob. 15HPCh. 13.3 - Prob. 16HPCh. 13.3 - Prob. 17STPCh. 13.3 - Prob. 18STPCh. 13.3 - Prob. 19STPCh. 13.3 - Prob. 20STPCh. 13.3 - Prob. 21SRCh. 13.3 - Prob. 22SRCh. 13.3 - Prob. 23SRCh. 13.3 - Prob. 24SRCh. 13.3 - Prob. 25SRCh. 13.3 - Prob. 26SRCh. 13.3 - Prob. 27SRCh. 13.3 - Prob. 28SCh. 13.3 - Prob. 29SCh. 13.4 - Prob. 1GPCh. 13.4 - Prob. 2GPCh. 13.4 - Prob. 3GPCh. 13.4 - Prob. 1CYUCh. 13.4 - Prob. 2CYUCh. 13.4 - Prob. 3CYUCh. 13.4 - Prob. 4PPSCh. 13.4 - Prob. 5PPSCh. 13.4 - Prob. 6PPSCh. 13.4 - Prob. 7PPSCh. 13.4 - Prob. 8PPSCh. 13.4 - Prob. 9PPSCh. 13.4 - Prob. 10PPSCh. 13.4 - Prob. 11PPSCh. 13.4 - Prob. 12PPSCh. 13.4 - Prob. 13HPCh. 13.4 - Prob. 14HPCh. 13.4 - Prob. 15HPCh. 13.4 - Prob. 16HPCh. 13.4 - Prob. 17STPCh. 13.4 - Prob. 18STPCh. 13.4 - Prob. 19STPCh. 13.4 - Prob. 20STPCh. 13.4 - Prob. 21SRCh. 13.4 - Prob. 22SCh. 13.5 - Prob. 1GPCh. 13.5 - Prob. 2GPCh. 13.5 - Prob. 1CYUCh. 13.5 - Prob. 2CYUCh. 13.5 - Prob. 3CYUCh. 13.5 - Prob. 4CYUCh. 13.5 - Prob. 5PPSCh. 13.5 - Prob. 6PPSCh. 13.5 - Prob. 7PPSCh. 13.5 - Prob. 8PPSCh. 13.5 - Prob. 9PPSCh. 13.5 - Prob. 10PPSCh. 13.5 - Prob. 11PPSCh. 13.5 - Prob. 12HPCh. 13.5 - Prob. 13HPCh. 13.5 - Prob. 14HPCh. 13.5 - Prob. 15HPCh. 13.5 - Prob. 16HPCh. 13.5 - Prob. 17STPCh. 13.5 - Prob. 18STPCh. 13.5 - Prob. 19STPCh. 13.5 - Prob. 20STPCh. 13.5 - Prob. 21SRCh. 13.5 - Prob. 22SRCh. 13.5 - Prob. 23SCh. 13.5 - Prob. 24SCh. 13.5 - Prob. 25SCh. 13.6 - Prob. 1GPCh. 13.6 - Prob. 2GPCh. 13.6 - Prob. 3GPCh. 13.6 - Prob. 4GPCh. 13.6 - Prob. 5GPCh. 13.6 - Prob. 1CYUCh. 13.6 - Prob. 2CYUCh. 13.6 - Prob. 3CYUCh. 13.6 - Prob. 4CYUCh. 13.6 - Prob. 5CYUCh. 13.6 - Prob. 6CYUCh. 13.6 - Prob. 7CYUCh. 13.6 - Prob. 8CYUCh. 13.6 - Prob. 9PPSCh. 13.6 - Prob. 10PPSCh. 13.6 - Prob. 11PPSCh. 13.6 - Prob. 12PPSCh. 13.6 - Prob. 13PPSCh. 13.6 - Prob. 14PPSCh. 13.6 - Prob. 15PPSCh. 13.6 - Prob. 16PPSCh. 13.6 - Prob. 17PPSCh. 13.6 - Prob. 18PPSCh. 13.6 - Prob. 19PPSCh. 13.6 - Prob. 20PPSCh. 13.6 - Prob. 21PPSCh. 13.6 - Prob. 22HPCh. 13.6 - Prob. 23HPCh. 13.6 - Prob. 24HPCh. 13.6 - Prob. 25HPCh. 13.6 - Prob. 26STPCh. 13.6 - Prob. 27STPCh. 13.6 - Prob. 28STPCh. 13.6 - Prob. 29STPCh. 13.6 - Prob. 30SRCh. 13.6 - Prob. 31SRCh. 13.6 - Prob. 32SCh. 13.6 - Prob. 33SCh. 13.6 - Prob. 34SCh. 13.6 - Prob. 35SCh. 13.7 - Prob. 1GPCh. 13.7 - Prob. 2GPCh. 13.7 - Prob. 3GPCh. 13.7 - Prob. 1CYUCh. 13.7 - Prob. 2CYUCh. 13.7 - Prob. 3CYUCh. 13.7 - Prob. 4CYUCh. 13.7 - Prob. 5PPSCh. 13.7 - Prob. 6PPSCh. 13.7 - Prob. 7PPSCh. 13.7 - Prob. 8PPSCh. 13.7 - Prob. 9PPSCh. 13.7 - Prob. 10PPSCh. 13.7 - Prob. 11PPSCh. 13.7 - Prob. 12PPSCh. 13.7 - Prob. 13PPSCh. 13.7 - Prob. 14PPSCh. 13.7 - Prob. 15PPSCh. 13.7 - Prob. 16PPSCh. 13.7 - Prob. 17HPCh. 13.7 - Prob. 18HPCh. 13.7 - Prob. 19HPCh. 13.7 - Prob. 20HPCh. 13.7 - Prob. 21STPCh. 13.7 - Prob. 22STPCh. 13.7 - Prob. 23STPCh. 13.7 - Prob. 24STPCh. 13.7 - Prob. 25SRCh. 13.7 - Prob. 26SRCh. 13.7 - Prob. 27SRCh. 13.7 - Prob. 28SRCh. 13.7 - Prob. 29SRCh. 13.7 - Prob. 30SRCh. 13.7 - Prob. 31SCh. 13.7 - Prob. 32SCh. 13.7 - Prob. 33SCh. 13.7 - Prob. 34SCh. 13.8 - Prob. 1GPCh. 13.8 - Prob. 2GPCh. 13.8 - Prob. 3GPCh. 13.8 - Prob. 4GPCh. 13.8 - Prob. 1CYUCh. 13.8 - Prob. 2CYUCh. 13.8 - Prob. 3CYUCh. 13.8 - Prob. 4CYUCh. 13.8 - Prob. 5CYUCh. 13.8 - Prob. 6PPSCh. 13.8 - Prob. 7PPSCh. 13.8 - Prob. 8PPSCh. 13.8 - Prob. 9PPSCh. 13.8 - Prob. 10PPSCh. 13.8 - Prob. 11PPSCh. 13.8 - Prob. 12PPSCh. 13.8 - Prob. 13PPSCh. 13.8 - Prob. 14PPSCh. 13.8 - Prob. 15PPSCh. 13.8 - Prob. 16HPCh. 13.8 - Prob. 17HPCh. 13.8 - Prob. 18HPCh. 13.8 - Prob. 19HPCh. 13.8 - Prob. 20HPCh. 13.8 - Prob. 21STPCh. 13.8 - Prob. 22STPCh. 13.8 - Prob. 23STPCh. 13.8 - Prob. 24STPCh. 13.8 - Prob. 25SRCh. 13.8 - Prob. 26SRCh. 13.8 - Prob. 27SRCh. 13.8 - Prob. 28SRCh. 13.8 - Prob. 29SCh. 13.8 - Prob. 30SCh. 13.8 - Prob. 31SCh. 13.8 - Prob. 32SCh. 13.9 - Prob. 1AGPCh. 13.9 - Prob. 1BGPCh. 13.9 - Prob. 2GPCh. 13.9 - Prob. 3AGPCh. 13.9 - Prob. 3BGPCh. 13.9 - Prob. 4GPCh. 13.9 - Prob. 1CYUCh. 13.9 - Prob. 2CYUCh. 13.9 - Prob. 3CYUCh. 13.9 - Prob. 4CYUCh. 13.9 - Prob. 5PPSCh. 13.9 - Prob. 6PPSCh. 13.9 - Prob. 7PPSCh. 13.9 - Prob. 8PPSCh. 13.9 - Prob. 9PPSCh. 13.9 - Prob. 10PPSCh. 13.9 - Prob. 11PPSCh. 13.9 - Prob. 12PPSCh. 13.9 - Prob. 13PPSCh. 13.9 - Prob. 14PPSCh. 13.9 - Prob. 15PPSCh. 13.9 - Prob. 16PPSCh. 13.9 - Prob. 17PPSCh. 13.9 - Prob. 18PPSCh. 13.9 - Prob. 19PPSCh. 13.9 - Prob. 20PPSCh. 13.9 - Prob. 21PPSCh. 13.9 - Prob. 22PPSCh. 13.9 - Prob. 23PPSCh. 13.9 - Prob. 24PPSCh. 13.9 - Prob. 25PPSCh. 13.9 - Prob. 26PPSCh. 13.9 - Prob. 27PPSCh. 13.9 - Prob. 28PPSCh. 13.9 - Prob. 29PPSCh. 13.9 - Prob. 30PPSCh. 13.9 - Prob. 31PPSCh. 13.9 - Prob. 32PPSCh. 13.9 - Prob. 33HPCh. 13.9 - Prob. 34HPCh. 13.9 - Prob. 35HPCh. 13.9 - Prob. 36HPCh. 13.9 - Prob. 37HPCh. 13.9 - Prob. 38STPCh. 13.9 - Prob. 39STPCh. 13.9 - Prob. 40STPCh. 13.9 - Prob. 41STPCh. 13.9 - Prob. 42SRCh. 13.9 - Prob. 43SRCh. 13.9 - Prob. 44SRCh. 13.9 - Prob. 45SRCh. 13.9 - Prob. 46SRCh. 13.9 - Prob. 47SRCh. 13.9 - Prob. 48SRCh. 13.9 - Prob. 49SCh. 13.9 - Prob. 50SCh. 13.9 - Prob. 51SCh. 13.9 - Prob. 52SCh. 13.10 - Prob. 1AGPCh. 13.10 - Prob. 1BGPCh. 13.10 - Prob. 2AGPCh. 13.10 - Prob. 2BGPCh. 13.10 - Prob. 3GPCh. 13.10 - Prob. 1CYUCh. 13.10 - Prob. 2CYUCh. 13.10 - Prob. 3CYUCh. 13.10 - Prob. 4CYUCh. 13.10 - Prob. 5PPSCh. 13.10 - Prob. 6PPSCh. 13.10 - Prob. 7PPSCh. 13.10 - Prob. 8PPSCh. 13.10 - Prob. 9PPSCh. 13.10 - Prob. 10PPSCh. 13.10 - Prob. 11PPSCh. 13.10 - Prob. 12PPSCh. 13.10 - Prob. 13PPSCh. 13.10 - Prob. 14PPSCh. 13.10 - Prob. 15PPSCh. 13.10 - Prob. 16PPSCh. 13.10 - Prob. 17PPSCh. 13.10 - Prob. 18PPSCh. 13.10 - Prob. 19PPSCh. 13.10 - Prob. 20PPSCh. 13.10 - Prob. 21PPSCh. 13.10 - Prob. 22PPSCh. 13.10 - Prob. 23PPSCh. 13.10 - Prob. 24PPSCh. 13.10 - Prob. 25PPSCh. 13.10 - Prob. 26HPCh. 13.10 - Prob. 27HPCh. 13.10 - Prob. 28HPCh. 13.10 - Prob. 29HPCh. 13.10 - Prob. 30HPCh. 13.10 - Prob. 31STPCh. 13.10 - Prob. 32STPCh. 13.10 - Prob. 33STPCh. 13.10 - Prob. 34STPCh. 13.10 - Prob. 35SRCh. 13.10 - Prob. 36SRCh. 13.10 - Prob. 37SRCh. 13.10 - Prob. 38SRCh. 13.10 - Prob. 39SRCh. 13.10 - Prob. 40SRCh. 13 - Prob. 1QCCh. 13 - Prob. 2QCCh. 13 - Prob. 3QCCh. 13 - Prob. 4QCCh. 13 - Prob. 5QCCh. 13 - Prob. 6QCCh. 13 - Prob. 7QCCh. 13 - Prob. 8QCCh. 13 - Prob. 9QCCh. 13 - Prob. 10QCCh. 13 - Prob. 11QCCh. 13 - Prob. 12QCCh. 13 - Prob. 13QCCh. 13 - Prob. 1MCQCh. 13 - Prob. 2MCQCh. 13 - Prob. 3MCQCh. 13 - Prob. 4MCQCh. 13 - Prob. 5MCQCh. 13 - Prob. 6MCQCh. 13 - Prob. 7MCQCh. 13 - Prob. 8MCQCh. 13 - Prob. 9MCQCh. 13 - Prob. 10MCQCh. 13 - Prob. 11MCQCh. 13 - Prob. 12MCQCh. 13 - Prob. 1SGRCh. 13 - Prob. 2SGRCh. 13 - Prob. 3SGRCh. 13 - Prob. 4SGRCh. 13 - Prob. 5SGRCh. 13 - Prob. 6SGRCh. 13 - Prob. 7SGRCh. 13 - Prob. 8SGRCh. 13 - Prob. 9SGRCh. 13 - Prob. 10SGRCh. 13 - Prob. 11SGRCh. 13 - Prob. 12SGRCh. 13 - Prob. 13SGRCh. 13 - Prob. 14SGRCh. 13 - Prob. 15SGRCh. 13 - Prob. 16SGRCh. 13 - Prob. 17SGRCh. 13 - Prob. 18SGRCh. 13 - Prob. 19SGRCh. 13 - Prob. 20SGRCh. 13 - Prob. 21SGRCh. 13 - Prob. 22SGRCh. 13 - Prob. 23SGRCh. 13 - Prob. 24SGRCh. 13 - Prob. 25SGRCh. 13 - Prob. 26SGRCh. 13 - Prob. 27SGRCh. 13 - Prob. 28SGRCh. 13 - Prob. 29SGRCh. 13 - Prob. 30SGRCh. 13 - Prob. 31SGRCh. 13 - Prob. 32SGRCh. 13 - Prob. 33SGRCh. 13 - Prob. 34SGRCh. 13 - Prob. 35SGRCh. 13 - Prob. 36SGRCh. 13 - Prob. 37SGRCh. 13 - Prob. 38SGRCh. 13 - Prob. 39SGRCh. 13 - Prob. 40SGRCh. 13 - Prob. 41SGRCh. 13 - Prob. 42SGRCh. 13 - Prob. 1PTCh. 13 - Prob. 2PTCh. 13 - Prob. 3PTCh. 13 - Prob. 4PTCh. 13 - Prob. 5PTCh. 13 - Prob. 6PTCh. 13 - Prob. 7PTCh. 13 - Prob. 8PTCh. 13 - Prob. 9PTCh. 13 - Prob. 10PTCh. 13 - Prob. 11PTCh. 13 - Prob. 12PTCh. 13 - Prob. 13PTCh. 13 - Prob. 14PTCh. 13 - Prob. 15PTCh. 13 - Prob. 16PTCh. 13 - Prob. 17PTCh. 13 - Prob. 18PTCh. 13 - Prob. 19PTCh. 13 - Prob. 20PTCh. 13 - Prob. 1ECh. 13 - Prob. 2ECh. 13 - Prob. 1STPCh. 13 - Prob. 2STPCh. 13 - Prob. 3STPCh. 13 - Prob. 4STPCh. 13 - Prob. 5STPCh. 13 - Prob. 6STPCh. 13 - Prob. 7STPCh. 13 - Prob. 8STPCh. 13 - Prob. 9STPCh. 13 - Prob. 10STPCh. 13 - Prob. 11STPCh. 13 - Prob. 12STPCh. 13 - Prob. 13STP

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