Question

A Little help here 2!!

Answer 1

Unit rates are expressed as a quantity of 1, such as 3 feet per second or 6 miles per hour, they are called unit rates.

In the given table shows the number of pictures taken and how much time it took.

For first camera;

Number of pictures (unit rate) per second =
`(15)/(3) =5` pictures.

For second Camera:

Number of picture per second =
`(48)/(8) =6` pictures.

For third Camera:

Number of picture per second =
`(18)/(6) =3` pictures.

The camera that takes picture the fastest is, Second Camera.

(a)

As per the given statement: At Davidson's Bike rentals, it costs $29 to rent a bike for 8 hour.

⇒ unit rate per dollar =
`(Number of hours )/(Total cost) = (8)/(29) = 0.2758620` hours

Therefore, 0.227 hours (nearest to hundredths) of bike use does a customer get per dollar.

(b)

Jessica bought 18 pounds of sugar for $10.

unit rate per dollar =
`(18)/(10) =1.8 pounds`

therefore, 1.8 pounds of sugar did she get per dollar.