<br class="Apple-interchange-newline"><div></div>A=12,25×(x+64,35)−225
Để A=755thì :
12,25×(x+64,35)−225=755
12,25×(x+64,35)=755+225
12,25×(x+64,35)=980
x+64,35=80
x=15,65
Vậy x=15,65để A=755
\(A=\)\(12,25\times\left(x+64,35\right)-225\)
Để \(A=\)\(755\)thì :
\(12,25\times\left(x+64,35\right)-225\)\(=755\)
\(12,25\times\left(x+64,35\right)\)\(=755\)\(+225\)
\(12,25\times\left(x+64,35\right)\)\(=980\)
\(x+64,35=80\)
\(x=15,65\)
Vậy \(x=15,65\)để \(A=\)\(755\)
