Question

Julie wrote the rate $108 in 6 weeks as a unit rate. Determine her mistake and correct it.

Answer 1

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.

Answer 2

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`

`(108)/(6) = 18\ (dollars)/(week)`

therefore

the answer is

The unit rate is
`18\ (dollars)/(week)`