Question

kimora has a 4-kilogram bag of birdseed. she uses 0.1 kilogram each day to fill her birdfeeder. how many days will the bag of birdseed last? find $4 \div 0.1$. the bag of birdseed will last \boxed{?} days.

Explanation:

Step1: Rewrite division as fraction

$4 \div 0.1 = \frac{4}{0.1}$

Step2: Eliminate decimal in denominator

Multiply numerator and denominator by 10: $\frac{4 \times 10}{0.1 \times 10} = \frac{40}{1}$

Step3: Simplify the fraction

$\frac{40}{1} = 40$

Answer:

40