Question

On a road trip Maura drove at a speed of 60 miles per hour for the first two hours she then increased her speed by 25%

A- Write an expression to show what her new speed is after the increase

Answer 1

`v_(new) = v_(old) \cdot 1,25 = 75 mph`

Explanation:

It does not matter for how long she was driving with the old speed if you only wanna know the new speed.