Question

A cheetah can run at a maximum speed of 113 km/h. The cheetah loses 7% of its maximum speed each year. Find the cheetah’s maximum speed after 5 years

Answer 1

78.6 km/h

Explanation:

Each year, the maximum speed is multiplied by (1 - 7%) = 0.93. After 5 years, the speed has been multiplied by that factor 5 times, so has been multiplied by 0.93^5. The maximum speed is then ...

(113 km/h)(0.93^5) ≈ 78.6 km/h