Answer:
3.045 minutes
Step-by-step explanation:
[tex](3\times 1)+(4\times 0.01)+(5\times 0.001)\\\\\mathrm{Remove\:parentheses}:\quad \left(a\right)=a\\\\=3\times \:1+4\times \:0.01+5\times \:0.001\\\\=3+4\times \:0.01+5\times \:0.001\\\\=3+0.04+5\times \:0.001\\\\=3+0.04+0.005\\\\=3.045[/tex]
