IDNLearn.com connects you with experts who provide accurate and reliable answers. Our community is here to provide detailed and trustworthy answers to any questions you may have.
well, the order is $159, so say that's the 100%, we know the delivery charge was 10 bucks.
[tex]\begin{array}{ccll} amount&\%\\ \cline{1-2} 159&100\\ 10&x \end{array}\implies \cfrac{159}{10}=\cfrac{100}{x}\implies 159x=1000 \\\\\\ x=\cfrac{1000}{159}\implies x\approx 6.29[/tex]