# Tutor profile: Jhonny P.

## Questions

### Subject: Java Programming

Write a program that shows the message hello world

public class HelloWorld { public static void main(String[] args) { System.out.println("Hello World"); } }

### Subject: C++ Programming

Write a program that shows the message hello world on it

#include <iostream> using namespace std; int main() { cout << "Hello World!"; }

### Subject: Algebra

What is the result for the following problem? x+x+x=60 x+y+ý=30 y-2z=3 z+x*y=?

We can set x as 20, so 20+20+20 = 60 now let try the next part, we can set y as 5 so we have for the second equation 20 + 5+ 5=30 so we are good so far. now for the third one 5-2z=3, we can solve it for -2z=3-5, z=-2/-2 , z=1 now for the last part. We have 1+20*5=? remember the order of operations, so we need to do first the multiplications then the addition. so we have 20*5=100 now the addition 100+1=101 that is the answer

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