! is factorial
it means multipliy all numbers from 1 to that number together
example
1!=1
2!=2*1
3!=3*2*1
etc
some things to note
7!*8=8!
4!*5*6=6!
so we can rewrite it as
=
=
Well there is no exact answer
6x + y = x + 5y
5x = 4y
4x + 6x + y = 180
10x + y = 180 so y = 180 - 10x
substitute y = 180 - 10x into 5x = 4y
5x = 4y
5x = 4(180 - 10x )
5x = 720 - 40x
45x = 720
x = 16
answer A.
x = 16
Answer:
The two values of production level are:
x = 20
or
x = 140
Step-by-step explanation:
Let's write the Profit equation by subtracting the cost function from the revenue one:
Now, we set to find the production level "x" to give us a profit of $ 700:
So we solve this quadratic equation using the quadratic formula:
which gives two posible solutions: x = 20, or x = 140
6 (100) = 600
6 (10) = 60
14 (1) = 14
600+60+14
660+14= 674
