Answer:
4.9kg
Explanation:
Given;
Total mass of apple and pear sold = 8.4kg
Mass of apple sold = a
Mass of pear sold = 3.5kg
The total mass of apple and pear sold is the sum of the mass of apple and mass of pear sold.
Total mass = mass of apple + mass of pear
Mass of apple a = total mass - mass of pear sold
Substituting the given values;
Mass of apple a = 8.4 kg - 3.5 kg= 4.9kg