New to programing keep getting error. Please help!

[SilentNinja]

Okay so I'm in a intro to programming class and for an assignment we're supposed to develop a program that gives the ingredients for fruit punch and convert the normal service size to a service size of 240,000. The teacher gave us an example on how to do it, I modified it and still get errors. Errors like syntax errors not including ";" and another one saying : "There is no context in which this conversion is possible". Here's my code:

 
#include <iostream>
using namespace std;
 
int main()
{
  double cupsOfSlicedStrawberries: 2.0;
  double cupsOfWater: 2.0;
  double ouncesOfFrozenPinkLemonadeConcentrate: 12.0;
  double ouncesOfFrozenSweetenedSlicedStrawberies: 10.0;
  double ouncesOfFrozenOrangeJuiceConcentrate: 6.0;
  double litersOfLemonLimeSoda: 2.0;
  double ammountCanServe: 14.0;
 
  double mustServe: 240000.0;
 
  cupsOfSlicedStrawberries = cupsOfSlicedStrawberries / ammountCanServe * mustServe;
  cupsOfWater = cupsOfWater / ammountCanServe * mustServe;
  ouncesOfFrozenPinkLemonadeConcentrate = ouncesOfFrozenPinkLemonadeConcentrate / ammountCanServe * mustServe;
  ouncesOfFrozenSweetenedSlicedStrawberies = ouncesOfFrozenSweetenedSlicedStrawberies / ammountCanServe * mustServe;
  ouncesOfFrozenOrangeJuiceConcentrate = ouncesOfFrozenOrangeJuiceConcentrate / ammountCanServe * mustServe;
  litersOfLemonLimeSoda = litersOfLemonLimeSoda / ammountCanServe * mustServe;
 
  cout << endl;
  cout << "Recipe for " << mustServe << " Sweetheart Punches" << endl;
  cout << "--------------------------------------------------" << endl;
  cout << "cupsOfSlicedStrawberries: " << cupsOfSlicedStrawberries << endl;
  cout << "cupsOfWater: " << cupsOfWater << endl;
  cout << "ouncesOfFrozenPinkLemonadeConcentrate: " << ouncesOfFrozenPinkLemonadeConcentrate << endl;
  cout << "ouncesOfFrozenSweetenedSlicedStrawberies: " << ouncesOfFrozenSweetenedSlicedStrawberies << endl;
  cout << "ouncesOfFrozenOrangeJuiceConcentrate: " << ouncesOfFrozenOrangeJuiceConcentrate << endl;
  cout << "litersOfLemonLimeSoda: " << litersOfLemonLimeSoda << endl;
  cout << endl;
 
  return 0;
 
}
 
 

[weaknessforcats]

double cupsOfSlicedStrawberries: 2.0;

Use = instead of : to assign value

double cupsOfSlicedStrawberries = 2.0;

There is a : operator but it's not used like this so your compiler generates a general error message. However, the line number should appear on the error. That identifies when the compiler knew it was in trouble. The actual error may be on that line or perhaps an earler line.