Respuesta :
Given that [tex]1\frac{1}{2}[/tex] ounces of chemical required for each gallon.
Total amount of chemical required for [tex]3\frac{4}{5}[/tex] gallons water will be product if [tex]1\frac{1}{2}[/tex] and [tex]3\frac{4}{5}[/tex] that is approximately 2*4 = 8 ounces ( [tex]3\frac{4}{5}[/tex] means 3+([tex]\frac{4}{5}[/tex]) 3.8 ≈4 and [tex]1\frac{1}{2}[/tex] means 1+([tex]\frac{1}{2}[/tex]) 1.5≈2)
Exact amount = 1.5*3.8 = 5.7 ounces.
