Answer:
-60 miles per hour
Step-by-step explanation:
From the given problem, it says show how to make a ten to solve 13-7.
Subtracting 13 to 7 gets 6. In order to get a 10, subtract 10 by 6. 10-6 = 4.
So, you need to add 4 in order to make a ten.
Disclaimer: What do you by make a ten to solve 13-7?
1. To solve for s you need to get s alone on the left side.
2. subtract 4t from both sides of the equation.
s+4t=r
-4t -4t
3. Your answer is:
s=r-4t