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Alexus [3.1K]
3 years ago
13

In 5 days she made 80 sandcastles. Each day she made 4 fewer castles than the day before. How many castles did she make each day

?
Mathematics
1 answer:
kodGreya [7K]3 years ago
8 0

Answer:

Castles made:    N         day 1

                           N - 4    day 2

                           N - 8     day 3

                           N - 12     day 4

                           N - 16      day 5

Total   5 N - 40 = 80

              N = 24  total  castles day 1

Total castles = 24 + 20 + 16 + 12 + 8 = 80

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