Question

an empty shipping box has a mass of 2.75kilogarams.an electronics store is packing 5 identical laptops in the shipping box.each laptop has mass of 1.65kg.the cost ship the box was $40.00 for the first 5 kg and $3.15 for each kilogram over 5kg.what was the cost to ship the packed box?

Answer 1

`Total \: weight \: of \: the \: box \: with\: 5 \: laptops:1.65 * 5 + 2.75= 11\: kg \\ The \: cost \: of \: overweight \: kg:3.15(11 - 5) = \$18.9 \\ The \: cost \: to \: ship \: the \: packed \: box:40 + 18.9 = \$58.9`