Question #25791
1 Answer
Jan 19, 2018
One popcorn costs $6.425 and one drink costs $1.8. In total both cost $8.225.
Explanation:
If we assign variables to the popcorn and the drinks...
Popcorn =
Drink =
First equation:
Second equation:
Now you just need to solve the simultaneous questions. Personally my favourite way of doing it is substitution. See below:
From
I can substitute this into the first equation replacing
I then solve for
Then solve for
The price of one popcorn and one drink is thus