3 years ago

With work please and thanks

Mathematics

1 answer:

Ipatiy [6.2K]3 years ago

7 0

Answer:

Step-by-step explanation:

He bought a total of 5 tickets, some child, some adult. This is the NUMBER equation.

# of adult tickets + # of child tickets = 5 tickets

Now for the COST equation. Each child ticket costs $2, so the expression for that is 2c; each adult ticket costs $8, so the expression for that is 8a. He spend a total of $22:

$2c + $8a = $22

Money and the number of tickets are NOT THE SAME so they cannot be put into the same equation. They won't add or subtract because they're not like.

Your system is choice A

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The sum of the measures of the interior angles of a regular polygon is 5400. find the number of sides in the polygon.

Svet_ta [14]

Sum of Interior Angles = (Number of Sides -2) • 180 degrees

Number of Sides = [Sum of Interior Angles / 180 degrees] +2

Number of Sides = (5,400 / 180) +2

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Source:
http://www.1728.org/polygon.htm

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3 years ago

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Answer:

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Step-by-step explanation:

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