The graph shows the number of sandwiches sold by a cafe 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 cafe 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
= 38 + 44
= 82
Total sales on Saturday and Sunday
= 82 x 7
= $574
Answer(s): (a) Thu; (b) $574