Question

question 1 of 8
which statement describes a unit rate?

yura creates 14 new flower arrangements over a 30 - minute period.

zach plays 47 songs on the guitar in 3.5 hours.

danny fills 4 coffee cups from 1 coffee pot.

farmer fernandez plows 3 cornfields every 5 days.

Explanation:

A unit rate is a rate that has a denominator of 1 (i.e., a comparison of a quantity to 1 unit of another quantity). Let's analyze each option:

• For "Yura creates 14 new flower arrangements over a 30 - minute period", the rate is $\frac{14}{30}$ arrangements per minute (denominator not 1).
• For "Zach plays 47 songs on the guitar in 3.5 hours", the rate is $\frac{47}{3.5}$ songs per hour (denominator not 1).
• For "Danny fills 4 coffee cups from 1 coffee pot", the rate is 4 coffee cups per 1 coffee pot (denominator is 1, so this is a unit rate as it shows the number of cups per 1 pot).
• For "Farmer Fernandez plows 3 cornfields every 5 days", the rate is $\frac{3}{5}$ cornfields per day (denominator not 1).

Answer:

C. Danny fills 4 coffee cups from 1 coffee pot.