To solve for the number of apple slices, we first need to determine how many snack bags Mrs. Pine made using the total number of carrots.
Since each snack bag contains 5 carrots, we can calculate the number of snack bags by dividing the total number of carrots (100) by the number of carrots per snack bag (5):
\( 100 \div 5 = 20\)
This tells us that Mrs. Pine made 20 snack bags.
Next, since each snack bag also contains 4 apple slices, we can calculate the total number of apple slices by multiplying the number of snack bags (20) by the number of apple slices per snack bag (4):
\( 20 \times 4 = 80\)
Thus, the total number of apple slices \( a \) can be represented with the following equations:
- \( 100 \div 5 = 20 \)
- \( 20 \times 4 = a \)
So, the correct pair of equations would be:
100 ÷ 5 = 20 and 20 X 4 = a