Curtis decided to go on a road trip to Canada. On the first day of his trip, he drove for 10 hours and traveled 640 miles. At what rate did he travel on the first day, in miles per hour?

We can divide the amount he traveled (640) by the time he traveled (10):

640 / 10 = 64.

So Curtis drove 64 miles per hour.

Check:

64 miles per hour multiplied by 10 hours:

64 * 10 = 640

64 miles per hour

Step-by-step explanation:

miles divided by hours = 640/10 = 64mph

what is the original number? you forgot to add it.