Question

Jasmine is traveling at 45 miles per hour. At that same rate, how long will it take her to travel 135 miles?

Answer 1

45\ miles\ per\ 1\ hour\\
135\ miles\ per\ x\ hours\\\\
making\ proportion:\\
45-1\\
135-x\\\\
cross\ multiplication\\\\
45x=135\ \ \ | divide\ by\ 45\\\\
x=3\\\\
It\ will\ take\ 3\ hours.

Explanation:

Answer 2

`45\ miles\ per\ 1\ hour\\ 135\ miles\ per\ x\ hours\\\\ making\ proportion:\\ 45-1\\ 135-x\\\\ cross\ multiplication\\\\ 45x=135\ \ \ | divide\ by\ 45\\\\ x=3\\\\ It\ will\ take\ 3\ hours.`