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nekit [7.7K]
3 years ago
13

The number of seats in the first row of a concert hall is 6. Th second row has 9 seats, the third row has 12 seats, and the four

th row has 15 seats. How many seats will be in the eighth row?

Mathematics
2 answers:
iris [78.8K]3 years ago
8 0
Eighth row has 27 seats
zhuklara [117]3 years ago
7 0
It's a pattern, you add three to every row. (1st row) 6+3=9, (second row) 9+3=12, (third row) 12+3=15, (fourth row) 15+3=18, (fifth row) 18+3=21, (sixth row) 21+3=24, (seventh row) 24+3=27 (eighth row) 27+3=30.
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The measure of angle DBE is (0.1x - 22) and the measure of angle CBE is (0.3x - 54). Find the value of x.
ElenaW [278]

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Step-by-step explanation:

Given that,

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The measure of angle CBE (0.3x - 54)

<u>Step 1</u>

As per the  Angle Addition Postulate,

m∠DBE+m∠CBE=m∠DBC

<u> Step 2</u>

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<u>Step 3</u>

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