Take 6.8 and divide by 2.72 and you get 2.5 hours
You have to find the average of 38 and 42 (witch is 40) and then set it to a ratio of 40:100 multiply both sides by 8.5 and we get 340
Answer:
x=5
Step-by-step explanation:
First, let's understand logarithms.
When there is no base given, like in this problem's right side of the equation, the base is automatically 10.
So, let's re-write that.

Now, let's test a few of the numbers out. For brevity, I already know it's 3. Let's show you why.
