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katovenus [111]

3 years ago

6

A box contains 10 pins 3 are blue and 7 are green. Two pins are taken out the box without replacement. Work out the probability

that both pins are the same colour

1 answer:

velikii [3]3 years ago

5 0

This is a guess but 5/10 idk rlly know but sorry if I’m wrong

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Step by step linear combination. 3x+2y=-4 4x-y=13

Paraphin [41]

Answer:

The solution is the point (2,-5)

Step-by-step explanation:

we have

$3x+2y=-4$ ------> equation A

$4x-y=13$ ------> equation B

Multiply equation B by 2 both sides

$2(4x-y)=2*13$

$8x-2y=26$ ------> equation C

Adds equation A and equation C

$3x+2y=-4\\8x-2y=26\\---------\\3x+8x=-4+26\\11x=22\\x=2$

Find the value of y

substitute the value of x in equation A

$3(2)+2y=-4$

$2y=-4-6$

$2y=-10$

$y=-5$

The solution is the point (2,-5)

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Step-by-step explanation:

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3 years ago

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7nadin3 [17]

ax - b = c

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divide by a

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x = (c+b)/a

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The gcf of the numbers are 15

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Answer:

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Step-by-step explanation:

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