Julie wrote the rate $108 in 6 weeks as a unit rate. Determine her mistake and correct it.
Unit rate is per unit; therefore, to determine the rate for one week you must divide each part if the problem by 6, giving you the unit rate which is $18.00 per week.
we know that
A unit rate is a ratio between two different units with a denominator of one
so
the rate \(\$108\) in \(6\) weeks is not a unit rate
To find the unit rate divide \(\$108\) by \(6\ weeks\)
\(\frac{108}{6} = 18\ \frac{dollars}{week}\)
therefore
the answer is
The unit rate is \(18\ \frac{dollars}{week}\)