Answer:
$13,200
Step-by-step explanation:
To solve this problem, we need to cross multiply. Lets input the values (1,200, 100, 1,100) as shown below:
[tex]\frac{100}{1,200} = \frac{1,100}{x}[/tex]
Next we cross multiply. We multiply 100 and x, and we multiply 1,200 and 1,100.
[tex]100(x)=100x[/tex]
[tex]1,200(1,100)=1,320,000[/tex]
Now, lets put the values above back into the equation:
[tex]100x=1,320,000[/tex]
The last step is to divide 1,320,000 by 100.
[tex]x= \frac{1,320,000}{100}[/tex]
[tex]x=13,200[/tex]
It will cost $13,200 to have 1,100 square feet installed.
