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uranmaximum [27]
3 years ago
8

Freya is training for a track race. She starts by sprinting 200 yards. She gradually increases her distance, adding 5 yards a da

y for 21 days which explicit formula models this situation
Mathematics
2 answers:
KiRa [710]3 years ago
8 0

Answer:

The explicit formula is:

a_n = 200 +5(n-1)

Step-by-step explanation:

Freya increases 5 yards daily to the number of yards she runs.

Note that the increase factor is constant, so this problem can be modeled using an arithmetic sequence.

The explicit formula for an arithmetic sequence is:

a_n = n_1 + d(n-1)

Where:

a_n is the number of yards that Freya runs on the day

a_1 is the number of yards that he runs on day 1

d is the increase factor. d = 5 yards

n is the number of days

Then as a_1 = 200 and d = 5, the explicit formula is:

a_n = 200 +5(n-1)

olga55 [171]3 years ago
6 0

Answer:

a_n = 200 (n-1)5

Step-by-step explanation:

just to simplify from those over achievers who confuse the living  h e l l out of everyone

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