Answer:
is this answer correct?
let me know in the comment section below!
Step-by-step explanation:
Hope you liked it!
Answer:
-4
Step-by-step explanation:
Answer: 2 hours
Step-by-step explanation:
<u>ANSWER</u>
(C) y
<u>EXPLANATION</u>
We have two equations:
The first one is

The second equation is

Let us make z the subject of this second equation:

We now add equation (1) and (3) to get:

We simplify to get:


Divide throu by 2.



The correct answer is C