Answer:
x = 7
Step-by-step explanation:
Order of operations rules require that we do multiplication and division BEFORE addition and subtraction.
Let's start by simplifying the expression. Adding 15 to both sides results in:
8,000÷(28x+4) = 40.
Multiplying both sides by (28x + 4) results in the simpler:
8000 = 40(28x + 4).
Dividing both sides by 40 results in:
200 = 28x + 4, or
196 = 28x
Solve for x by dividing both sides by 28:
x = 7
Area = l * w 104 =(w+5) * w w2 +5w -104 =0 (w+13)(w-8)=0w=13 and w=8so width =8length=13
Given:
Consider the given function is:
To find:
The average rate of change between x = 0 and x = 4.
Solution:
The average rate of change of a function f(x) over the interval [a,b] is:
We have,
At ,
At ,
Now, the average rate of change between x = 0 and x = 4 is:
Hence, the average rate of change between x = 0 and x = 4 is 156.