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Mkey [24]
3 years ago
7

Ezra is training for a track race. he starts by sprinting 100 yards. he gradually increases his distance, adding 5 yards for 21

days. the explicit formula that models this situation is an=100+(n-1)5. how far does he sprint on day 21
Mathematics
2 answers:
valentinak56 [21]3 years ago
8 0

Answer:

<em>He sprint 200 yards on day 21.</em>

Step-by-step explanation:

The given explicit formula is:  a_{n}= 100+(n-1)5, where n is the number of days.

For the day 21, the value of n will be:  n=21

Plugging this n=21 into the above explicit formula....

a_{21}= 100+(21-1)5\\ \\ a_{21}=100+(20)5\\ \\ a_{21}=100+100=200

So, he sprint 200 yards on day 21.

Shalnov [3]3 years ago
3 0

the answer would be 200 i think

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Part 1 (the ovals)
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-------------------
Part 3 (the graph)
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===============================================

Explanation:

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------------------------------

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