Answer:
Step-by-step explanation:
The system would be:
And I attached the graph. The system will have 2 solution (The 2 intercepts between the curves)
1 gal + 2 qt + 3 pts
1 gal + 3 qt + 7 pts
1 gal + 3 qt + 3 pts
----------------------------add
3 gal + 8 qt + 13 pts
1 gal = 4 qts
1 gal = 8 pts
1 pt = 1/2 qt
13 pts = 6.5 qts
now we have 3 gal + (8 + 6.5) = 3 gal + 14.5 qts
12 qts = 3 gal
now we have : 6 gal + 2.5 qts or 6 gal + 2 qts + 1 pt <=== answer
Since there were 6 slices, and he ate 1/3, 6*1/3= 2, so he ate 2 slices