mr shah is working out the cost of the electricity he used in april
Electricity meter readingspogrubienie
1 april = 79721
30 april = 80305
Mr shah has to pay
21.3 for each of the first 70 units used in april and
10.2 for each of all the other units used in april.
work out the total cost of the electricity he used in April.
show working
16.) This formula is used to work out the cost,£Ckursywa, of hiring a car for dkursywa days.
C=35d+40
Karl wants to hire a car for 4 days
a.) how much will this cost Karl?
Barry hired a car at a cost of £355
b.) for how many days did barry hire the car?
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