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