The graph shows the amount of money David saved from his pocket money every month from February to June.
- How much money did David save altogether from February to June?
- What was the average amount of money David saved from February to June?
- David saved $21 in July. The amount saved increased by 100% from July to August and another 100% from August to September. How much money did David save in September?
(a)
Amount saved in February = $15
Amount saved in March = 60
Amount saved in April = $0
Amount saved in May = $85
Amount saved in June = $90
Total amount saved from February to June
= 15 + 60 + 85 + 90
= $250
(b)
Average amount saved from February to June
= 250 ÷ 5
= $50
(c)
Amount that David saved in July = $21
Amount that David saved in August
= 21 + 21
= $42
Amount that David saved in September
= 42 + 42
= $84
Answer(s): (a) $250; (b) $50; (c) $84
