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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?

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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:

[tex]y=rx\text{ }[/tex]

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

[tex]720=r9[/tex]

Dividing both sides by 9:

[tex]\frac{720}{9}=r[/tex]

Simplifying terms:

[tex]80=r[/tex]

Switching sides:

[tex]r=80[/tex]

Answer: I was traveling at 80 mph

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