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elena55 [62]
3 years ago
15

8 15 27 blank 20 find the blank number​

Mathematics
1 answer:
777dan777 [17]3 years ago
6 0

Answer:

the blank number is 23

Step-by-step explanation:

8, 15, 27, x, 20

common ratio, r= T2÷ T1= T3÷ T2

= 15 ÷ 8 =27÷ 15

= 1.8 = 1.8

20 ÷ x = x ÷ 27

( cross multiply,)

x²= 540

x =√540

x = 23.24

x = 23

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