Final answer:
Alysa's rate of growth for her accidentally ordered flour is approximately 19.3 months, calculated by dividing the total flour amount of 135 pounds by her monthly usage of 7 pounds.
Step-by-step explanation:
To calculate the rate of growth in this situation, we need to find the difference between the initial amount of flour and the amount used each month, and then divide that by the initial amount. In this case, Alysa accidentally ordered 135 pounds of flour, and Sally uses 7 pounds of flour every month. So, the rate of growth is (135 - 7) / 135 = 128 / 135, which is approximately 0.948 or 94.8%.
When Alysa accidentally ordered 135 pounds of flour but only used 7 pounds of flour every month, we needed to determine the rate of growth of the flour supply. To find the rate of growth, you divide the total amount by the rate of usage. Here, the total amount is 135 pounds, and the monthly usage is 7 pounds per month. Thus, the rate of growth, which in this case is the duration the flour will last, is calculated as 135 pounds รท 7 pounds/month.
The calculation gives us a result of 19.2857, which we can round to 19.3 months. So, Alysa's rate of growth for her flour supply is approximately 19.3 months before she runs out, assuming she continues to use flour at the same monthly rate.