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AlekseyPX
3 years ago
6

Fifty part-time students were asked how many courses they were taking this term. The (incomplete) results are shown below. Need

answers for part B and C

Computers and Technology
1 answer:
Ne4ueva [31]3 years ago
5 0

Answer:

The answer for B is 10% and for C is 40%.

Explanation:

To get the percentage for B you take the the frequecy of students taking 2 courses (5) and multiply it by 100 then you divide it by whole number of students.

For C you do the after adding the number of students taking 1 or 2 courses (20).

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Answer: Eh I don’t yet
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Read 2 more answers
p25: File Write and Read1) User enters a file name (such as "myMovies.txt").2) User enters the titles of 4 of their favorite mov
SCORPION-xisa [38]

Answer:

<em>The program goes as follows  </em>

<em>Comments are used to explain difficult lines</em>

#include<iostream>

#include<fstream>

#include<sstream>

#include<string>

using namespace std;

int main()

{

//Declare String to accept file name

string nm;

//Prompt user for file name

cout<<"Enter File Name: ";

getline(cin,nm);

//Create File

ofstream Myfile(nm.c_str());

//Prompt user for 4 names of movies

string movie;

for(int i = 1;i<5;i++)

{

 cout<<"Please enter a movie title #"<<i<<": ";

 cin>>movie;

 //Write to file, the names of each movies

 Myfile<<movie<<endl;

}

Myfile.close(); // Close file

//Create an Array for four elements

string myArr[4];

//Prepare to read from file to array

ifstream file(nm.c_str());

//Open File

if(file.is_open())

{

 for(int i =0;i<4;i++)

 {

  //Read each line of the file to array (line by line)

  file>>myArr[i];

 }

}

file.close(); // Close file

//Create a reverseOrder.txt file

nm = "reverseOrder.txt";

//Prepare to read into file

ofstream Myfile2(nm.c_str());

for(int j = 3;j>=0;j--)

{

 //Read each line of the file to reverseOrder.txt (line by line)

 Myfile2<<myArr[j]<<endl;

}

Myfile2.close(); //Close File

return 0;

}

See attached for .cpp program file

Download cpp
6 0
3 years ago
Write a class named Episode. An instance of this episode class will represent a single episode of a TV show, with a title, a sea
gavmur [86]

Answer:

See explaination

Explanation:

class Episode{

//Private variables

private String title;

private int seasonNumber;

private int episodeNumber;

//Argumented constructor

public Episode(String title, int seasonNumber, int episodeNumber) {

this.title = title;

this.seasonNumber = seasonNumber;

this.episodeNumber = episodeNumber;

}

//Getter and setters

public String getTitle() {

return title;

}

public void setTitle(String title) {

this.title = title;

}

public int getSeasonNumber() {

return seasonNumber;

}

public void setSeasonNumber(int seasonNumber) {

this.seasonNumber = seasonNumber;

}

public int getEpisodeNumber() {

return episodeNumber;

}

public void setEpisodeNumber(int episodeNumber) {

this.episodeNumber = episodeNumber;

}

public boolean comesBefore(Episode e){

//Check if titles' match

if(this.title.equals(e.getTitle())){

//Compare season numbers

if(this.seasonNumber<e.seasonNumber){

return true;

}

//Check if season numbers match

else if(this.seasonNumber==e.getSeasonNumber()){

return this.episodeNumber<e.getEpisodeNumber();

}

}

return false;

}

atOverride // replace the at with at symbol

public String toString() {

return title+", season "+seasonNumber+", episode "+episodeNumber;

}

}

class Main{

public static void main(String[] args) {

Episode e = new Episode("Friends",1,1);

System.out.println(e);

Episode e2 = new Episode("The Wire",3,5);

System.out.println(e2);

System.out.println(e.getTitle()+" comes before "+e2.getTitle()+" = "+e.comesBefore(e2));

}

}

7 0
3 years ago
Entering the formula =SUM(C5:C18) in cell C19 will result in which of the following?
frozen [14]
Well the result shown in C19 will show the sum of all cells from C5 to C18:
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:)
3 0
3 years ago
Write Java program to allow the user to input the amount of deposit, yearly interest rate (percentage), and income tax(percentag
Vedmedyk [2.9K]

Answer:

import java.util.Scanner;

public class num12 {

   public static void main(String[] args) {

       Scanner scr = new Scanner(System.in);

       System.out.println("Enter a Deposit Amount");

       double amt = scr.nextDouble();

       System.out.println("Income tax in percentage");

       double incomeTaxRate = scr.nextDouble()/100;

       System.out.println("Yearly interest rate:");

       double rate = scr.nextDouble();

       double intRate = rate/100;

       double interest = (amt*intRate)-(amt*incomeTaxRate);

       System.out.println("The Interest on "+amt+" at "+rate+"% after one year is "+interest);

   }

}

Explanation:

Find the sample output attached

Java's Scanner class is used to prompt and receive values for deposit amount, income tax rate and interest rate

The yearly interest is calculate by interest = (amt*intRate)-(amt*incomeTaxRate);

3 0
3 years ago
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