Answer:
6 pounds
Step-by-step explanation:
Let the can weigh x pounds
Let the milk weigh y when full, therefore half is [tex]\frac{y}{2}[/tex]
Now we for 2 simultaneous equations:
[tex]x + y =70[/tex] ....(i)
[tex]x+ \frac{y}{2}= 38[/tex] .... (ii)
we solve by eliminating the x in both equation throug subtraction
[tex]x - x + y- \frac{y}{2} =70-38\\y- \frac{y}{2} = 32\\\frac{y}{2} = 32\\y=2(32)\\y=64\\x+y=70\\x+64=70\\x=6[/tex]
