Question

The leg from the waiting area to the airplanes take off

Answer 1

We will check each leg of Kiley's trip one after the other

(1). From House to the Airport

Distance = 24.3 miles

Time = 1/2 hour

Ratio of Miles to Hour is

`24.3\colon(1)/(2)`

Express the ratio as a decimal number

`48.6`

Unit rate in miles per hour (mph)

`48.6\text{mph}`

(2). From Car to the Waiting Area

Distance = 1.2 miles

Time = 3/4 hours

Ratio of Miles to Hour is

`1.2\colon(3)/(4)`

Express the ratio as a decimal number

`1.6`

Unit rate in miles per hour (mph)

`1.6\text{mph}`

(3). Plane Flew in Air

Distance = 346 miles

Time = 9/4 hours

Ratio of Miles to Hour is

`346\colon(9)/(4)`

Express the ratio as a decimal number

`\begin{gathered} 153.\bar{7} \\ \text{That is 153.77777777 (written as 153. 7bar)} \end{gathered}`

Unit rate in miles per hour (mph)

`153.\bar{7}\text{mph}`

(4). Walking from plane landing to get a cab

Distance = 1.1 miles

Time = 30 minutes = 30/60 hours = 1/2 hours

Ratio of Miles to Hour is

`1.1\colon(1)/(2)`

Express the ratio as a decimal number

`2.2`

Unit rate in miles per hour (mph)

`2.2\text{mph}`

(5). Cab to Grandmother house

Distance = 12.3 miles

Time = 15minutes = 15/60 hours = 1/4 hours

Ratio of Miles to Hour is

`12.3\colon(1)/(4)`

Express the ratio as a decimal number

`49.2`

Unit rate in miles per hour (mph)

`49.2\text{mph}`