Final answer:
An example of a "part to whole" ratio in everyday life is the number of apples to the total fruit in a bowl, for instance, 3 apples out of 10 pieces of fruit, expressed as a ratio of 3:10. This concept helps to compare part of a quantity to the whole quantity.
Step-by-step explanation:
An example of a "part to whole" ratio in everyday life could be the number of apples compared to the total number of fruit in a fruit bowl. If there are 3 apples and 10 pieces of fruit in total, the ratio of apples to total fruit would be 3:10 or 3/10. This demonstrates how ratios can be written as fractions and compare part of a quantity to the whole.
Unit rate and unit scale are also closely related to ratios. A unit rate like 55 miles per hour is a comparison where the denominator is 1. A unit scale could relate real-life distances to those on a map, where 1 inch may represent 100 feet, written as a ratio of 1 inch/100 ft.