Question

MODELING REAL LIFE The hour hand of a clock moves $-30°$ every hour. How many degrees does it move in $2\frac{1}{5}$ hours?

Answer 1

Step 1: Degrees moved by hour hand in an hour $=-30$ degree

Degrees moved by hour hand in $2\frac{1}{5}$ hours $=-30\times 2\frac{1}{5}$

Step 2: $=-30\times 2\frac{1}{5}$

$=-30\times \frac{11}{5}$

$=-66$ degrees

Final Answer: Degrees moved by hour hand in $2\frac{1}{5}$ hours $=-66$ degrees