How to be like Elon Musk who achieved more in his 46 years than we will ever achieve in ten lifetimes?

Write a program that grades arithmetic quizzes as follows: Ask the user how many questions are in the quiz. Ask the user to ente

kirill115 [55]

Answer:

The program in C++ is as follows:

#include <iostream>

using namespace std;

int main(){

int questions, answer;

cout<<"Questions: ";

cin>>questions;

int answerkey[questions];

cout<<"Enter answer keys: ";

for(int i = 0; i< questions; i++){

cin>>answerkey[i]; }

int correct = 0;

cout<<"Enter answers: ";

for(int i = 0; i< questions; i++){

cin>>answer;

if(answer == answerkey[i]){

correct++; } }

cout<<"Correct answers: "<<correct<<endl;

cout<<"Percentage correct : "<<(100 * correct)/questions<<"%";

return 0;

}

Explanation:

This declares the number of questions and the answers submitted to each equation

int questions, answer;

Prompt to get the number of questions

cout<<"Questions: ";

This gets input for the number of questions

cin>>questions;

This declares the answerkey as an array

int answerkey[questions];

Prompt to get the answer key

cout<<"Enter answer keys: ";

This iteration gets the answer key for each question

for(int i = 0; i< questions; i++){

cin>>answerkey[i]; }

This initializes the number of correct answers to 0

int correct = 0;

Prompt to get the enter the answers

cout<<"Enter answers: ";

This iterates through the answer keys

for(int i = 0; i< questions; i++){

This gets the answer to each question

cin>>answer;

This compares the answer to the answer key of the question

if(answer == answerkey[i]){

If they are the same, correct is incremented by 1

correct++; } }

Print the number of correct answers

cout<<"Correct answers: "<<correct<<endl;

Print the percentage of correct answers

cout<<"Percentage correct : "<<(100 * correct)/questions<<"%";

7 0

3 years ago

Which of the following is a characteristic of the college savings plan

Hoochie [10]

add the choices please

8 0

4 years ago

Read 2 more answers

What three files do you need to perform a mail merge? HELP ASAP PLEASE!!

Burka [1]

The 3 files you need to have for a successful mail merge are:

An Excel spreadsheet works
Outlook Contact List.
Apple Contacts List or Text file, etc.

<h3>What is Mail Merge?</h3>

This is known to be the act of carrying out a Mail Merge and it is one where a person will need to use a Word document and a recipient list, that is an Excel workbook.

Files needed are:

Text file,
address files, etc.

The 3 files you need to have for a successful mail merge are:

An Excel spreadsheet worksOutlook Contact List.

Apple Contacts List or Text file, etc.

Learn more about mail merge from

brainly.com/question/20904639

#SPJ1

4 0

2 years ago

What is it called when you make predictions within given data?

denis23 [38]

When a researcher uses given data to make a prediction, this is known as a hypothesis. The hypothesis generally serves as a starting point for future research, allowing a researcher to further develop their theory through additional testing, observation, and, if necessary, revision to the current hypothesis.

4 0

3 years ago

If I have an Animal superclass with a Mammal subclass, both concrete and both having a method called eat() with identical signat

Katarina [22]

Answer:

(c) the dynamic type of reference will determine which of the methods to call.

Explanation:

Polymorphism in Object Oriented Programming typically means the same method name can cause different actions depending on which object it is invoked on. Polymorphism allows for dynamic binding in that method invocation is not bound to the method definition until the program executes.

So in the case of Animal superclass and Mammal subclass, both having a method called eat() with identical signatures and return types, depending on which reference, the correct method eat() will be called dynamically upon execution.

For example, if we have the following;

================================

Mammal mammal = new Animal();

mammal.eat()

================================

The eat() method that will be called is the one in the Mammal subclass.

However, if we have;

================================

Animal animal = new Animal();

animal.eat()

================================

The eat() method of the Animal superclass will be called.

5 0

3 years ago