Mathematics, 30.07.2021 02:50 genyjoannerubiera

Một hộp bi có 3 loại:xanh,đỏ,vàng biết trong hộp có 1/3 số bi xanh,1/4 số bi vàng ,còn lại là bi đỏ.Hỏi có tất cả bao nhiêu viên bi biết số bi đỏ là 60 viên

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Answer from: Quest

send it over

step-by-step explanation:

Answer from: Quest

answer: - (a) $a_n=16+6n$

(b) 88 seats

step-by-step explanation:

given: in an auditorium, there are 22 seats in the first row and 28 seats in the second row.

thus first term= $a_1 =22$

second term= $a_2 =28$

the number of seats in a row continues to increase by 6 with each additional row.

⇒d= 6

a) given formula : $a_n=a_1+(n-1)(d)$

$a_n=22+(n-1)6\\\rightarrow\ a_n=22+6n-6\\\rightarrow\ a_n=16+6n$

b) let the number of seats (n) = 12

substitute n=12 in the explicit rule formed in (a)

$a_{12} = 16+6\times12\\\rightarrow\ a_{12}=16+72\\\rightarrow\ a_{12}=88\ seats$

∴there are 88 seats in 12 rows.

Answer from: Quest

Ap human geography and geometry

Answer from: Quest

answer: it depends on what the tax percentage

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Một hộp bi có 3 loại:xanh,đỏ,vàng biết trong hộp có 1/3 số bi xanh,1/4 số bi vàng ,còn lại là bi đỏ....