Answer:
The average price for all apples Mrs. Wise bought is $1.5 and this can be determined by using the unitary method.
Explanation:
Given :
On Monday Mrs. Wise bought 3 lbs of apples at $4 per lb.
On Tuesday, apples were on sale for 20% off so she bought another 5 lbs.
If the price of 3 lbs apples is $4 then the price of 5 lbs apples is:
= $20/3
Now, determine the price of apples Mrs. Wise bought on Tuesday when apples are on 20% sale.
= $16/3
The average price is given by:
Average Price = $1.5
So, the average price for all apples Mrs. Wise bought is $1.5.