-2-3x=3+1x
-2-3=1x+3x
-5=4x
x=-1.25
Since y = 1/2x + 3
X - 2(1/2x + 3), x/1 - 2x/2 -6/2 = x+3
Or x-x-3=0 which equals -3 so it is inconsistent since it's not dependable :)
Set each equation to get Y by its self
Then set the equations equal to each other and solve for X
Easy(:
Keep in mind that whenever you have a variable inside an expression, you have to think of it as a placeholder, hiding a certain value which we haven't specified yet.
Expressions with variables are a mean to express the generic idea underneath the expression, rather than its particular value.
So, an expression like x-7 represents the idea of subtracting 7 from a particular number. Once you give a specific value to x, the expression will become an actual subtraction between numbers, and you will be able to compute its value.
So, we have several values for x, which are several ways to turn our "abstract" subtraction into an actual, computable subtraction.
If 
, the expression becomes 
and it evaluates to 
.
If 
, the expression becomes 
and it evaluates to 
.
If 
, the expression becomes 
and it evaluates to 
.
If 
, the expression becomes 
and it evaluates to 
.
If 
, the expression becomes 
and it evaluates to 
.
Then the most profitable investment is the first machine (third option) because for each dollar, it produces 2 pounds of candy.
<h3>
Which of the following is the most profitable investment?</h3>
The first option is a worker that costs $10 per hour and produces 8lb, then this worker gives:
8lb/$10= <em>0.8 pounds per dollar.</em>
The second worker costs $12 per hour, and produces 16lb per hour, so this worker gives:
16lb/$12 = <em>1.33 pounds per dollar.</em>
The third option is a machine that cost $5 per hour and produces 10lb per hour, then:
10lb/$5 = <em>2 pound per dollar.</em>
The last option costs $8 per hour, and produces 14 pounds per hour, then:
14lb/$8 = <em>1.75 pounds per dollar.</em>
Then the most profitable investment is the first machine (third option) because for each dollar, it produces 2 pounds of candy.
If you want to learn more about profit:
brainly.com/question/23103804
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