N is a positive integer explain why n(n-1) must be an even number

Mathematics

1 answer:

kolezko [41]3 years ago

3 0

Answer:

if 'n' is positive and odd then reducing it by one gives you an even; so then you are multiplying and even and an odd which results in an even

if 'n' is positive and even then reducing it by one gives you an odd; so then you are multiplying and even and an odd which results in an even

Step-by-step explanation:

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Hey 1200 seat theater sells two types of tickets for a concert. premium seats sell for $30 each and regular seats so for $20 eac

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X = premium seats
y = regular seats
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1.) Isolate one variable
y = 1,210 - x
2.) Plug the new equation into the second ORIGINAL equation
30x +20(1,210 - x) = 30,180
3.) Ditribute
30x + 24,200 - 20x = 30,180
4.) Add like terms
10x + 24,200 = 30,180
5.) Subtract 24,000 from either side
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6.) Solve for x
x = 618
7.) Plug in x to the equation of your choosing
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Helppp ASAAPPPP WILL MARK AS BRAINLIST

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<h2>GOOD LUCK ON SOLVING THAT KIDDO! </h2>

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