Question

3). Write an equation and solve. You will not be given credit for your answer if you do not include your equation! Your family took a trip to Florida. After the first day, your father said you had driven 720 miles. You knew you had traveled for 9 hours. How fast were you traveling per hour?

Answer 1

EXPLANATION

Let's see the facts:

Number of miles driven = 720

Traveled time = 9 hours

Let's call r to the rate, y to the number of miles driven and x to the hours, the appropiate equation is:

`y=rx\text{ }`

Then, as x=9 and y=720, replacing terms:

`720=r9`

Dividing both sides by 9:

`(720)/(9)=r`

Simplifying terms:

`80=r`

Switching sides:

`r=80`

Answer: I was traveling at 80 mph