Question

lucy planted some beans. she measured the height of one bean stalk on three consecutive days. use the rulers to answer the questions. write each answer as a whole number or decimal (not a fraction). (a) how much taller did the bean stalk grow from one day to the next? cm (b) at this rate, how tall will the bean stalk be on day 6? cm

Explanation:

Step1: Calculate the growth per day

From Day 2 to Day 3: The height on Day 2 is \(3\) cm and on Day 3 is \(4.5\) cm. The growth is \(4.5 - 3=1.5\) cm.
From Day 3 to Day 4: The height on Day 3 is \(4.5\) cm and on Day 4 is \(6\) cm. The growth is \(6 - 4.5 = 1.5\) cm.

Step2: Calculate the height on Day 6

The height on Day 4 is \(6\) cm.
From Day 4 to Day 5: growth of \(1.5\) cm, height \(=6 + 1.5=7.5\) cm.
From Day 5 to Day 6: growth of \(1.5\) cm, height \(=7.5+ 1.5 = 9\) cm.

Answer:

(a) \(1.5\) cm
(b) \(9\) cm