Raeann bought 4 kg of apples at $
k per kg and 2 kg of lemons at $3
k per kg.
- Find the amount that she paid for the fruits in terms of k.
- If k = 7, how much change did Mrs Raeann receive if she paid the fruit seller with a $100 note?
(a)
Amount paid for the apples
= 4 x
k = $4
k Amount paid for the lemons
= 2 x 3
k = $6
k Total amount paid for the fruits
= 4
k + 6
k = $10
k (b)
Amount that Mrs Raeann paid for the fruits
= 10
k = 10 x 7
= $70
Amount of change that Mrs Raeann received
= 100 - 70
= $30
Answer(s): (a) $10
k ; (b) $30