Respuesta :

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[tex]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.[/tex]
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Answer:


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.

Step-by-step explanation:


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