Question

Item 2 Find the unit rate. 6 2/5 revolutions in 2 2/3 seconds The unit rate is revolutions per second.

Answer 1

Divide the number of revolutions by the number of seconds.

(6 2/5) / (2 2/3) =

Rewrite each mixed numeral as a fraction.

= (32/5) / (8/3)

= 32/5 * 3/8

= 96/40

= 12/5

= 2 2/5

Answer: 2 2/5 revolutions per second