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djyliett [7]
3 years ago
13

What is 3n + 12? im so confused

Mathematics
2 answers:
baherus [9]3 years ago
7 0
It's an nth term for a sequence
So
I'm not really good at explaining but basically
3n means the three times table
And then to each number you add 12
So
3,6,9,12,15
(+12)
So your final answer is:
15,18,21,24
Naddika [18.5K]3 years ago
4 0
3(n+4) should be it
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Since Nikita ran a 5-kilometer race in 39 minutes (0.65 of an hour) without training beforehand, and in the first part of the race, her average speed was 8.75 kilometers per hour, while for the second part of the race, she started to get tired, so her average speed dropped to 6 kilometers per hour, to determine which expression represents Nikita's distance for the second part of the race the following calculation must be performed:

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Therefore, Nikita's distance from her for the second part of the race was 1.5 kilometers.

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