The graph shows the number of sandwiches sold by a coffee shop 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 $8 each. How much money did the coffee shop earn from the total sales on Saturday and Sunday?
(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 Thursday (Thu).
(b)
Number of sandwiches sold on Saturday and Sunday
= 39 + 46
= 85
Total sales on Saturday and Sunday
= 85 x 8
= $680
Answer(s): (a) Thu; (b) $680