Question

select all of the trips that would take 5 hours 1. Drive 40 miles per hour between Bend and Portland, which are 200 miles apart 2. Take a train going 50 miles per hour from Martinez to Dunsmuir, which are 259 miles apart 3. Walk 4 miles per hour to school, wh6is 1.75 miles apart

Answer 1

1. Yes

2. No

3. No.

Explanation:

The amount of time taken on a trip is equal to the distance travelled divided by the speed.

`\text{time taken = }\frac{dist\text{ travelled }}{\text{speed}}`

1. The drive from Bend to Portland is 200 miles and the speed is 40 miles per hour; therefore, the time taken is

`\text{time taken = }(200)/(40)=5\text{ hours.}`

2. The drive from Martinez to Dunsmuir is 259 and the speed is 50 miles per hour; therefore, the time taken is

`\text{time taken = }\frac{259\text{ miles}}{50\text{ mile per hour}}\text{ = 5.18 hours}`

3.

The distance to the school is 1.75 miles and the speed is 4 miles per hour; therefore, the time taken is

`\text{time taken = }\frac{1.75\text{ miles}}{4\text{ miles per hour }}=0.4375\text{ hours. }`

Hence, the only trip that takes 5 hours is trip 1.