Package Delivery Charges by Distance (FAST TRACK)

Package Delivery Charges by Distance (FAST TRACK)

TGM Original Questions

The graph below shows the charges by FAST TRACK, a package delivering company.

There is a fixed charge of \(\$3\) and for the first \(20\) km is charged at \(50\) cents per km, next \(25\) km at \(\$1\) per km and any additional km at \(y\) dollars per km.

  1. Find the value of \(y\).
    1. Find the cost of delivering the package \(50\)km away.
    2. If the cost of delivery is \(\$33\), find the distance the package was delivered.
  2. Another company GHL, delivers package and charges a flat rate of \(\$1.50\) per km but does not have a fixed charge.
    1. Draw a line on the grid to represent the charge by GHL.
    2. For a particular distance, the charges from both companies are the same. Find this distance.

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Answer:(a) \(y=1.35\). (b)(i) \(\$44.75\), about \(\$45\) graphically. (ii) 40 km. (c)(i) \(F=1.5d\), drawn in the solution. (ii) 3 km, at \(\$4.50\).

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