Answer :
First, find the area of the hallway.
[tex]Area=length*width[/tex]
[tex]A=90*7[/tex]
[tex]A=630[/tex]
Now you know there are 630 square feet to be cleaned. To find the amount of cleaning solution needed, multiply this number by 1/2.
[tex]Solution=area* \frac{1}{2} [/tex]
[tex]S=630* \frac{1}{2} [/tex]
[tex]S= \frac{630}{2} [/tex]
[tex]S=315[/tex]
Answer: 315 fluid ounces
[tex]Area=length*width[/tex]
[tex]A=90*7[/tex]
[tex]A=630[/tex]
Now you know there are 630 square feet to be cleaned. To find the amount of cleaning solution needed, multiply this number by 1/2.
[tex]Solution=area* \frac{1}{2} [/tex]
[tex]S=630* \frac{1}{2} [/tex]
[tex]S= \frac{630}{2} [/tex]
[tex]S=315[/tex]
Answer: 315 fluid ounces
[tex]90*7 = 630ft ^{2}
\\ \\ 1/2 floz ->1 ft^{2}
\\ \\ 630/2=315
\\\\\boxed{315}[/tex]
