A Review of Algebra

by Romeyn Henry Rivenburg

9. Simplify

10. Solve by the short method:

11. It takes

of a second for a ball to go from the pitcher to the catcher, and

of a second for the catcher to handle it and get off a throw to second base. It is 90 feet from first base to second, and 130 feet from the catcher's position to second. A runner stealing second has a start of 13 feet when the ball leaves the pitcher's hand, and beats the throw to the base by