70 miles in 2 hours in a unit ratio

35

Step-by-step explanation:

35

It is 70 miles/2 hours. It's better not to include decimal numbers when you write a ratio when you can, so we're going to make the hours the unit rate. To make 2 - > 1 hour, divide both sides of the ratio by 2. 70/2 = 35

2 70 per 1