Answer: \(327\) \(\text{ounce}\)
Step-by-step explanation:
Given: On the way home from school, ross wears his \(20\) pound backpack and carries his \(7\) ounce lunchbox.
To Find: how many ounces does he carry in total.
Solution:
Weight of Ross's backpack \(=20\) \(\text{pound}\)
Weight of Ross's lunchbox \(=7\) \(\text{ounce}\)
Now,
As unit of weight of backpack and lunchbox is different, we need to convert it.
\(1\) \(\text{pound}\) \(=16\) \(\text{ounce}\)
Now weight of backpack is\(=\text{weight in pound}\times16\)
\(20\times16\)
\(320\) \(\text{ounce}\)
Total ounces carried by Ross \(=\text{weight of backpack}+\text{weight of lunchbox}\)
\(320+7\) \(\text{ounce}\)
Hence Total ounce carried by Ross is \(320+7\) \(\text{ounce}\)
