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MariettaO [177]
2 years ago
9

First term is 3, common difference is 4 what is the 5th term

Mathematics
1 answer:
patriot [66]2 years ago
5 0

Answer:

19

Step-by-step explanation:

The n th term of an arithmetic sequence is

a_{n} = a₁ + (n - 1)d

where a₁ is the first term and d the common difference

Here a₁ = 3 and d = 4 , thus

a₅ = 3 + (4 × 4) = 3 + 16 = 19

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A town in east Texas received 30 inches of rain in two weeks. If it kept raining at this rate for a 31−day month, how much rain
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Answer:

66 inches

Step-by-step explanation:

This implies that in this specific town in Texas, an average of 30 inches of rain falls every two weeks.

Amount of rain received every two weeks (14 days) = 30 inches.

For a 31 day month, we have:

     \frac{31}{14} =  2\frac{3}{14}

Therefore for a 31 day month, the amount of rain received by the town can be determined as;

                               = 30 x 2\frac{3}{14}

                               = 66.4285

                               = 66 inches

The amount of rain received by the town is 66 inches for the 31 days.

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