The line graph shows the amount of money Tim spent from July to December.
- Of the amount Tim spent in October, $117 was spent on transport and the remaining amount was spent on food. How much did he spend on food in October?
- In which month did Tim spend $180 less than the previous month? Give your answer in this format. (Eg Jan)
(a)
Amount that Tim spent in October = $640
Amount that Tim spent on food
= 640 - 117
= $523
(b)
To find a decrease in a line graph, look for a decreasing slope.
The 2 decreasing slopes are from July to August and October to November. Now, find the month when Tim spent $180 less than the previous month.
Amount that Tim spent in July = $380
Amount that Tim spent in August = $200
Amount that Tim spent in August less than July
= 380 - 200
=
$180 (✓)
Amount that Tim spent in October = $640
Amount that Tim spent in November = $400
Amount that Tim spent in November less than October
= 640 - 400
= $240 (x)
The month that Tim spent $180 more than the previous month = Aug
Answer(s): (a) $523; (b) Aug