Penelope bought 4 kg of pineapples at $
y per kg and 2 kg of avocados at $4
y per kg.
- Find the amount that she paid for the fruits in terms of y.
- If y = 5, how much change did Mrs Penelope receive if she paid the fruit seller with a $100 note?
(a)
Amount paid for the pineapples
= 4 x
y = $4
y Amount paid for the avocados
= 2 x 4
y = $8
y Total amount paid for the fruits
= 4
y + 8
y = $12
y (b)
Amount that Mrs Penelope paid for the fruits
= 12
y = 12 x 5
= $60
Amount of change that Mrs Penelope received
= 100 - 60
= $40
Answer(s): (a) $12
y ; (b) $40