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Chapter 1: Q64. (page 26)
The perimeter of a regular octagon is 124 inches, Find the length of each side.
The required answer is
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Simplify each expression
14.
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 |
Find the value of each expression
4.
Write an algebraic expression to represent each verbal expression.
Four less than square of a number
Use the following information.
Simple interest is calculated using the formula , where represents the principal in dollars, represents the annual interest rate, and represents the time in years. Find the simple interest given each of the following values.
13.
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