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g100num [7]
3 years ago
13

An auditorium has 20 rows with 10 seats in the first row, 12 in the second row, 14 in the third row, and so forth. how many seat

s are in the auditorium?
Mathematics
1 answer:
Margaret [11]3 years ago
6 0
Maybe 100 because there are 20 rows and so many and the pattern is multiply by 2.
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You plan to take a 7-day trip to California. You estimate that it will cost $275 per day to visit Los Angeles, and $400 per day
Viktor [21]

Answer:

You can spend 4 days in Los Angeles and 3 days in San Francisco.

Step-by-step explanation:

From the information given, you can write the following equations:

x+y=7 (1)

275x+400y=2,300 (2), where:

x is the number of days to visit Los Angeles

y is the number of days to visit San Francisco

First, you can solve for x in (1):

x=7-y (3)

Now, you can replace (3) in (2):

275(7-y)+400y=2,300

1,925-275y+400y=2,300

125y=2,300-1,925

125y=375

y=375/125

y=3

Finally, you can replace the value of y in (3) to find x:

x=7-3

y=4

According to this, the answer is that you can spend 4 days in Los Angeles and 3 days in San Francisco.

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3 years ago
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MrRissso [65]

Answer:

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Step-by-step explanation:

x+9>16o

Flip the equation.

16o<x+9

Divide both sides by 16.

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Answer:

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Step-by-step explanation:

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