Question

An object is traveling at a steady speed of 10 1/5 mi​/h. How long will it take the object to travel 1 4/5​? First round to the nearest integer to find the estimated answer. Then find the exact answer

Answer 1

Answer:
`2\frac13\ h`

Explanation:

Given: Speed =
`10\frac15` mi/h
`=(21)/(5)`mi/h

Distance need to be travel =
`1\frac45` miles
`=(9)/(5)` miles

`speed=(distance)/(time)\\\\\Rightarrow\ time=(distance)/(speed)`

`\Rightarrow\ time =((21)/(5))/((9)/(5))\\\\\Rightarrow\ time =(21)/(9)\\\\\Rightarrow\ time =(7)/(3)\\\\\Rightarrow\ time =2\frac13\ h`

Hence, time taken to travel =
`2\frac13\ h`