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tigry1 [53]
3 years ago
14

Dante is selling donuts outside a huge office building every morning. The first week

Mathematics
1 answer:
inysia [295]3 years ago
5 0

Answer:

<h2>$205</h2>

Step-by-step explanation:

45 - 25 = 20

65 - 45 = 20

as you can see the common difference between the 3 consecutive numbers 25 , 45 and 65 is a constant (20)

so ,we are in an arithmetic sequence case with :

  • first term 25
  • common difference r = 20

Let’s label the sequence: Un

then

Un = U1 + (n-1)×r

    = 25 + (n-1)×20

    = 20n + 5

for n = 10 → U10 = 20(10) + 5 = 200 + 5 = 205

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