Question

On the first swing, a pendulum swings through an arc of length 65 cm. On the successive swing, the length of the arc is 85% of the length of the previous swing.

Write a rule to model this situation.

Answer 1

To model the situation, we can use the rule L2 = 0.85 * L1, where L2 is the length of the arc on the successive swing and L1 is the length of the arc on the first swing.

Step-by-step explanation:

To model the situation, we can use a rule that relates the length of the arc on each swing. Let's call the length of the arc on the first swing L1 and the length of the arc on the successive swing L2. We know that L2 is 85% of L1, so we can write the rule as:

L2 = 0.85 * L1

This rule shows that the length of the arc on each swing decreases by 15% compared to the previous swing.

Answer 2

you mutliply 65 to 85%/0.85 and you get 55.25cm as your answer