Algebra

posted by George

A bean sprout grows 3 inches in its first week, 2 inches in its second week, and 1.333 inches in its third week. If the sprout's growth follows this pattern, how much will the bean sprout have grown in its fourth week?

1. Ms. Sue

0.8889 inches

2. George

How did you arrive at that answer?

3. Ms. Sue

Each week it grew 2/3 (0.667) less than the week before.

3 * (2/3) = 2
2 * (2/3) = 1.3333

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