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RideAnS [48]
2 years ago
12

a theater has 49 seats in the first row, 52 seats in the second row, 55 seats in the third row, and so on. how many seats are th

ere in row 20
Mathematics
1 answer:
Dominik [7]2 years ago
7 0

Answer:

106

Step-by-step explanation:

this question represents an arithmetic sequence problem where you can use this formula: a(n) = a(1) + d(n-1)  where 'n' is value you're solving for, a(1) is the initial value, and 'd' is the common difference

a(20) = 49 + 3(20-1)

= 49 + 3(19)

= 49 + 57

= 106

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Savatey [412]

Answer:

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3 years ago
The average of Aaron's three test scores must be at least 93 to earn an A in the class. Aaron scored 89 on the first
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Answer:

Aaron must obtain a 96 or higher to achieve the desired score to earn an A in the class.

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Given that the average of Aaron's three test scores must be at least 93 to earn an A in the class, and Aaron scored 89 on the first test and 94 on the second test, to determine what scores can Aaron get on his third test to guarantee an A in the class, knowing that the highest possible score is 100, the following inequality must be written:

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