Super City Discount Department Store Is Open 24 Hours a Day.The

question 7

Essay

Super City Discount Department Store is open 24 hours a day.The number of cashiers need in each four hour period of a day is listed below.
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$$\begin{array} { c c } \text { Period } & \text { Cashiers Needed } \\\hline 10 \text { p.m. to } 2 \text { a.m. } & 8 \\2 \text { a.m. to } 6 \text { a.m. } & 4 \\6 \text { a.m. to } 10 \text { a.m. } & 7 \\10 \text { a.m. to } 2 \text { p.m. } & 12 \\2 \text { p.m. to } 6 \text { p.m. } & 10 \\6 \text { p.m. to } 10 \text { p.m. } & 15\end{array}$$ If cashiers work for eight consecutive hours,how many should be scheduled to begin working in each period in order to minimize the number of cashiers needed?

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Definitions:

Continental Platform

A broad region that surrounds the continental shield and typically exposes horizontal to gently dipping sedimentary rocks.

Crystalline Basement

The crystalline (metamorphic and igneous) rocks that underlie sedimentary and volcanic rocks in an area; widely exposed in the continental shield.

Broad Domes

Broad domes refer to large, rounded structures on the Earth's surface, often created by the slow uplift of the underlying strata.

Extension

The process or state of increasing in length, area, or volume, often referred to in geology as the stretching and thinning of the Earth's crust.