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Chapter 1: Q59. (page 32)
Write an algebraic expression to represent the verbal expression.
Twice the difference of a number and 11.
The algebraic expression is .
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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.
Write an algebraic expression to represent each verbal expression.
Four less than square of a number
Name the sets of numbers to which all of the following numbers belong. Then arrange the numbers in order from least to greatest.
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