3 years ago

your class has 30 students. 1/3 of them walk to school, how many studednts in your class walk to school

Mathematics

2 answers:

faust18 [17]3 years ago

8 0

Ten.
1/3 of 30 is 10
Drawing pictures always helps

NeTakaya3 years ago

4 0

10 students walk to students

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lesantik [10]

Answer:

(a).

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(b).

from general equation:

$S _{n - 1} = \frac{(n - 1)}{2} (4n + 16)$

first term is 4n

common difference:

$16 = \{(n - 1) - 1 \}d \\ 16 = (n - 2)d \\ d = \frac{16}{n - 2}$

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Step-by-step explanation:

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