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Chapter 1: Q36. (page 25)
Name the property illustrate by each statement.
If , then .
The required property is Substitution property
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Evaluate each expression if and
39.
In 1950, the average price of a car was about . This may sound inexpensive, but the average income in 1950 was much less than it is now. To compare dollar amounts over time, use the formula , where A is the old dollar amount, S is the starting year’s Consumer price index (CPI), C is the converting year’s CPI, and V is the current value of the old dollar amount. Buying a car for in 1950 was like buying a car for how much money in 2000?
Year | Average CPI |
1950 | 42.1 |
1960 | 29.6 |
1970 | 38.8 |
1980 | 82.4 |
1990 | 130.7 |
2000 | 174.0 |
Name the property illustrated by each equation.
Find the value of each expression
4.
The amount of pollutants saved by riding a bicycle rather than driving a car is calculated by adding the organic gases, carbon monoxide, and nitrous oxides emitted. To find the pound of pollutants created by starting a typical car 10 times and driving it for 50 miles, find the value of expression
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