To solve for x, add 3 to both sides, multiply both sides by -1, then take the square both sides.
A carpet installer charges a flat rate of $40, plus $1.50 per square foot for labor. So, the total cost for labor depends on the
2 answers:
Answer: Proportional
Step-by-step explanation:
Given : A flat rate charged by the carpet installer = $40
On addition to that , he charges $1.50 per square foot for labor.
Then , Total cost of carpet= Fixed rate of $40 + $1.50 per square foot for labor.
Let x be the area of the carpet in square feet.
Then, the total cost ( in $)= 40 +1.50x , which is a linear function with slope 1.50.
According to the definition of linear function , we have
A linear function is in the form of , it shows that the relationship between x and y is proportional.
That means , The relationship between the total cost for labor and the amount of carpet installed is proportional.
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ANSWER
The solution is
EXPLANATION
The given equations are:
and
We multiply equation 1 by 3 to get,
We multiply equation 2 also by 2 to get,
We subtract equation 4 from equation 3 to get,
This implies that,
We put this value of y into any of the equations say equation 2
Simplify
Group like terms
Simplify,
Divide both sides by 3 to get,
Therefore the solution is
The correct answer is option D.
The solution is
EXPLANATION
The given equations are:
and
We multiply equation 1 by 3 to get,
We multiply equation 2 also by 2 to get,
We subtract equation 4 from equation 3 to get,
This implies that,
We put this value of y into any of the equations say equation 2
Simplify
Group like terms
Simplify,
Divide both sides by 3 to get,
Therefore the solution is
The correct answer is option D.