Emma bought 3 kg of pineapples at $
w per kg and 2 kg of lemons at $3
w per kg.
- Find the amount that she paid for the fruits in terms of w.
- If w = 5, how much change did Mrs Emma receive if she paid the fruit seller with a $50 note?
(a)
Amount paid for the pineapples
= 3 x
w = $3
w Amount paid for the lemons
= 2 x 3
w = $6
w Total amount paid for the fruits
= 3
w + 6
w = $9
w (b)
Amount that Mrs Emma paid for the fruits
= 9
w = 9 x 5
= $45
Amount of change that Mrs Emma received
= 50 - 45
= $5
Answer(s): (a) $9
w ; (b) $5