It's 340% if that's what you looking for.
You can subtract 22 inches.
Answer:
30 mph
Step-by-step explanation:
Let the morning speed be represented by s.
Then the total distance drivern is 310 mi and this is equal to
5s + 4(s + 10):
5s + 4s + 40 = 310, or
9s = 270
Solving for s, we get s = 270/9 = 30
Then s + 10 = 40
He drove 30 mph in the morning and 40 mph in the afternoon.
Check: (30 mph)(5 hrs) + (40 mph)(4 hrs) = 310 miles. CORRECT

<h3>
Step-by-step explanation:</h3>
Yes, it's true sometimes we don't use negative value of 'x'.
So, we conclude it's True.
<h3>
Hope it help you</h3>