The graph shows the number of sandwiches sold by a food outlet in a week.
- Which day showed a decrease in the number of sandwiches sold compared to the previous day? Give your answer in this format. (Eg Mon)
- Each sandwich was sold at $7 each. How much money did the food outlet earn from the total sales on Monday and Tuesday?
(a)
To find a decrease in a line graph, look for a decreasing slope.
The day that showed a decrease in the number of sandwiches sold compared to the previous day is Wednesday (Wed).
(b)
Number of sandwiches sold on Monday and Tuesday
= 11 + 23
= 34
Total sales on Monday and Tuesday
= 34 x 7
= $238
Answer(s): (a) Wed; (b) $238