Final answer:
To find the number of homes with 4 or more bedrooms, subtract the percentage of homes with 3 bedrooms from 100%, then multiply this by the total number of homes. Round down to the nearest whole number.
Step-by-step explanation:
To determine how many homes have 4 or more bedrooms in the new community, we need to know the percentage of homes that have 3 bedrooms. Let's say the percentage is x%. This means that 100% - x% = 100% - x/100 = (100 - x)/100 of the homes have 4 or more bedrooms. To find the number of homes with 4 or more bedrooms, we multiply this percentage by the total number of homes, which is 74. So the number of homes with 4 or more bedrooms is (100 - x)/100 * 74.
For example, if x = 20%, then the number of homes with 4 or more bedrooms is (100 - 20)/100 * 74 = 80/100 * 74 = 59.2. Since we can't have a fraction of a home, we round down to the nearest whole number. So in this case, there are 59 homes with 4 or more bedrooms.