Please help me if you understand the area of a triangle. Look at the screenshot below!

Step-by-step explanation:

In this problem, we will rearrange the equation to isolate .

We start with the given equation:

I will work the and the out of the right side so that is left by itself.

First I multiply both sides by 2 to get rid of the :

2 is the same as , so its numerator and denominator cancel the .

Simplifying, we now have:

Now we can divide both sides by :

We can cancel the in the fraction on the right side, and we're left with:

which is the same as:

Hope this helps! Let me know if you have any questions.

he spend 5.1 minutes chatting with his friends.

step-by-step explanation:

2/5+1/2=9/10

6/1-9/10=5.1