Mathematics

Mathematics, 30.05.2020 05:59, Fm610899

First 200 units 22p per unit
Remaining units 15p per unit
Mr Powers checks his electricity bill.
Here are his meter readings.
New reading: 6538 units
Old reading: 6245 units

b) Calculate the cost of the number of units used.

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First 200 units 22p per unit
Remaining units 15p per unit
Mr Powers checks his electrici...

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