find twice the sum of 518 and 456
Answer (1)
Answer:Examples of Rational Numbers in Everyday Life Here are three examples of how rational numbers are used in everyday life: 1. Budgeting: - Scenario: You are planning a trip and need to budget your expenses. You have $500 to spend on food, accommodation, and activities.- Rational Numbers: You might use percentages to allocate your budget, such as 50% for accommodation, 30% for food, and 20% for activities. This translates to $250 for accommodation, $150 for food, and $100 for activities.- Key Knowledge: Percentages are a way of representing a part of a whole as a fraction out of 100. --- 2. Cooking: - Scenario: You are baking a cake and the recipe calls for 1/2 cup of flour.- Rational Numbers: The fraction 1/2 represents a rational number. You can use a measuring cup to measure out the correct amount of flour.- Key Knowledge: Fractions represent parts of a whole. --- 3. Distances: - Scenario: You are driving to a friend's house that is 10.5 miles away.- Rational Numbers: The decimal 10.5 represents a rational number. You can use a GPS device or a map to track your distance.- Key Knowledge: Decimals are a way of representing fractions with a denominator that is a power of 10.
