Answer:
The flour will last for about 11 days.
Step-by-step explanation:
Suppose, the flour will last for [tex]x[/tex] days.
She uses 15 pounds of flour each day. So, the total amount of flour used in [tex]x[/tex] days [tex]= 15x[/tex] pounds.
Given that, she has 157.86 pound of flour. So, the equation will be......
[tex]15x= 157.86\\ \\ x= \frac{157.86}{15}=10.524 \approx 11[/tex]
Thus, the flour will last for about 11 days.