Chapter 1: Problem 128
If \(x\) represents a number, write an English sentence about the number that results in an inconsistent equation.
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Chapter 1: Problem 128
If \(x\) represents a number, write an English sentence about the number that results in an inconsistent equation.
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In a round-robin chess tournament, each player is paired with every other player once. The formula $$ N=\frac{x^{2}-x}{2} $$ models the number of chess games, \(N,\) that must be played in a round-robin tournament with \(x\) chess players. Use this formula to solve. In a round-robin chess tournament, 36 games were played. How many players were entered in the tournament?
In all exercises, other than \(\varnothing,\) use interval notation to express solution sets and graph each solution set on a number line. In Exercises \(27-50,\) solve each linear inequality. $$ 3(x-8)-2(10-x)>5(x-1) $$
In 2014, the average age of cars on U.S. roads was 11.3 years. For the period shown, this average age increased by approximately 0.2 year per year. If this trend continues, how many years after 2014 will the average age of vehicles on U.S. roads be 12.3 years? In which year will this occur?
Each side of a square is lengthened by 2 inches. The area of this new, larger square is 36 square inches. Find the length of a side of the original square.
Solve each radical equation in Exercises 11–30. Check all proposed solutions. $$\sqrt{x}-3=x-9$$
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