Answer:
61.25 $$$$$$$$$$$$$$$$$$
Step-by-step explanation:
What is the solution and solvent in Kool-Aid?
Answer:
It looks like on step c he took away 10 instead of adding 10
Answer:
-1/5
Step-by-step explanation:
When a line is perpendicular to another line, it's gradient will be a reciprocal.
To calculate the reciprocal of a number you have to flip the fraction the other way around.
So, in the case our current gradient is 5/1 (5/1 is the same as just 5) and we need to flip in over to get 1/5, which is our new gradient.
The final step is to make the number negative because the line is going down. This gives us the final answer of -1/5.
