did i work these problems right if not could some one show me how to work all three of them.
8.Represent the quantity with a real number: An altitude of 400 feet (ft) above sea level: 400 is a real number. I could also use 4 as a real number representing a 400 ft. altitude as 4 increments of 100 feet as in flight level 4
9.Represent the quantity with a real number: A loss of $200 = -200
10.Represent the quantity with a real number: A decrease in population of 25,000 = -25,000
Yes, you have correctly represented the quantities with real numbers. Here's an explanation of how to work with these problems:
8. To represent an altitude of 400 feet above sea level as a real number, you can simply use the number 400. This is because real numbers include both positive and negative numbers, decimals, and fractions.
9. If there is a loss of $200, you can represent it as -200. The negative sign indicates a decrease or loss of money.
10. Similarly, if there is a decrease in population of 25,000, you can represent it as -25,000. Again, the negative sign shows a decrease or loss in this case the population count.