The average price for all apples Mrs. Wise bought is $1.5 and this can be determined by using the unitary method.
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:
[tex]=\dfrac{5}{3}\times 4[/tex]
= $20/3
Now, determine the price of apples Mrs. Wise bought on Tuesday when apples are on 20% sale.
[tex]=\dfrac{80}{100}\times \dfrac{20}{3}[/tex]
= $16/3
The average price is given by:
[tex]\rm Average \; Price = \dfrac{\dfrac{16}{3}+\dfrac{20}{3}}{5+3}[/tex]
[tex]\rm Average \; Price = \dfrac{36}{8\times 3}[/tex]
Average Price = $1.5
So, the average price for all apples Mrs. Wise bought is $1.5.
For more information, refer to the link given below:
https://brainly.com/question/1957976
