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3 years ago

14

In a dog show , there will be a gold and a silver medal awarded. There are 5 finalist. In how many different ways can the 2 meda

ls be awarded?

1 answer:

harina [27]3 years ago

6 0

P(5,2) = 5!/3! = 20

in 20 ways you can give medals

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The expression -5p + 20 factored is<br> factor out the coefficient of the variable

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3 years ago

Kevin is 3 times as old as Daniel. 4 years ago, Kevin was 5 times as old as Daniel.

rusak2 [61]

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3 years ago

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What is the solution for 2y=x+2<br> x-3y=-5

Mars2501 [29]

Answer:

x = 4

y = 3

Step-by-step explanation:

<u>Given </u><u>equations </u><u>:</u><u>-</u>

2y = x + 2
x - 3y = -5

<u>Second</u><u> </u><u>equation</u><u> </u><u>can </u><u>be</u><u> written</u><u> as</u><u> </u><u>,</u><u> </u>

x - 3y = -5
-3y = -x - 5

<u>Adding</u><u> </u><u>them </u><u>:</u><u>-</u><u> </u>

-3y + 2y = 2 -5
-y = -3
y = 3

<u>Put </u><u>this </u><u>in </u><u>(</u><u>ii)</u><u> </u><u>:</u><u>-</u><u> </u>

x = 3y - 5
x = 3*3 - 5
x = 9 -5
X = 4

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3 years ago

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