Gizmo Warm-up The Tides Gizmo shows the relative positions of the Earth, Moon, and
Sun. (None of the distances are to scale.) An observer stands on Earth.
Sun
1. Set the Speed to Slow. Select the BAR CHART and press
Play ( ). What do you notice?

Answer:

9.9 years

step-by-step explanation:

a = p(1 + rt) . . account balance after time t at rate r starting with principal p

3000 = 2500(1 + 0.0202t) . . filling in the given numbers

1.2 = 1 + 0.0202t . . divide by 2500

0.2 = 0.0202t . . . subtract 1

0.2/0.0202 = t ≈ 9.901

it will take about 9.9 years for the account balance to reach $3000.

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