Mathematics, 29.05.2021 15:10, chloehall2269

The charge C of a telephone company is partly constant and partly varies as the
number of units of call u. The cost of 50
units is N2 500 and the cost of 120 units
is N3000. Find:
a) the formula connecting C and u.

Answers: 1

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The charge C of a telephone company is partly constant and partly varies as the
number of unit...