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18-04-2020
Mathematics

contestada

First 100 units 24p per unit
Remaining units 16p
Mrs watt checks her electricity bill here are her meter readings.
New reading: 7143
Old reading: 6997
A)Use subtraction to calculate the number of units used

B)Calculate the cost of the number of units used

Respuesta :

18-04-2020

Answer:

Answer: a) 146 units used b) the cost of the number of units used is 3136 p.

Step-by-step explanation:

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