Final answer:
Both 11 pounds and 8 pounds are like terms because they have the same unit, allowing subtraction to be performed, resulting in 3 pounds. Conversion between units requires multiplying or dividing by the conversion factor, which is 16 for pounds to ounces.
Step-by-step explanation:
Understanding Like Terms in Customary Units of Weight
To determine whether 11 pounds and 8 pounds are like terms, we need to identify if they have the same unit. Here, both are measured in pounds, which means they are indeed like terms. Consequently, you can perform arithmetic operations such as subtraction or addition on them.
11 pounds - 8 pounds = 3 pounds
Converting Different Weight Measurements
When faced with different units, such as ounces and pounds, we use the conversions: 1 pound = 16 ounces. To convert pounds to ounces, multiply the number of pounds by 16. To convert ounces into pounds, divide the number of ounces by 16.
For example, 5 pounds to ounces:
First, multiply 5 (the number of pounds) by 16 (the conversion factor).
5 x 16 = 80, so 5 pounds = 80 ounces.