V=900m³
V=L*w*h
V=20*3*w
V=60*w
60*w=900
w=900/60
w=15m
Given the equation :

We will use estimation to find the value of the given expression
So, the best estimation for the number 576 is = 600
The best estimation for the number 8 is = 10
So, the given expression is approximately = 600 ÷ 10 = 60
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We can calculate the error of the approximation as following :
The actual value is : 576 ÷ 8 = 72
So, the difference is = 72 - 60 = 12
so, the percentage of error will be :

Answer:

Step-by-step explanation:
Substitute the second equation into the first one:

Substitute
into the second equation:


Answer:
I believe the answer would be 186
Step-by-step explanation:
241-55=186
The probability of loss is 0.2 because they must add up to 1.