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VMariaS [17]
3 years ago
13

A group of 28 people bought tickets to a show. The tickets cost $23.98 each.

Mathematics
1 answer:
LiRa [457]3 years ago
5 0

Answer:

$671.44

Step-by-step explanation:

$23.98 * 28 (people) = $671.44

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Step-by-step explanation:

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(9a^2 + 7a + 8) - (2a^2 + 5a + 1)
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Substitution for:<br> X-5y=10<br> 2x-10y=20
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Since you need an isolated variable to use the substitution method, we need to re-arrange one of the equations. This will probably be easiest to do with the first one.
Add 5y to both sides of the first equation.
x=10+5y
Now, in the second equation, put in 10+5y in any spot that has an x.
2(10+5y)-10y=20
Distribute the 2 to both numbers in the parenthesis.
20+10y-10y=20
Combine like terms.
20=20
This means that the two equations are actually the same. You can see this if you multiply the whole first equation by 2
2(x-5y=10)
2x-10y=20, which is the same as the second equation. Therefore, the two equations are actually the same one.
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3 years ago
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