Answer:
Total amount of the flour used is [tex]\frac{43}{100}[/tex] kg.
Step-by-step explanation:
Baker starts with [tex]\frac{4}{10}[/tex] kilograms of flour to make bread.
He further adds flour to his bread mixture = [tex]\frac{3}{100}[/tex] kg
Now we have to calculate the amount of flour he used to make the bread.
Total flour = [tex]\frac{4}{10}+\frac{3}{100}[/tex]
= [tex]\frac{40+3}{100}[/tex]
= [tex]\frac{43}{100}[/tex] kg
Therefore, total amount of the flour used is [tex]\frac{43}{100}[/tex] kg