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2 years ago

12

there are 3 red marbles 10 silver marbles in a bag you randomly choose one of the marbles what is the probability of you choosin

g a red marble

1 answer:

Margaret [11]2 years ago

8 0

Answer: 3/13

Step-by-step explanation:

3 red

10 silver

13 total

picking red: 3/13

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What is the recursive formula for the sequence? -14, -8, -2, 4, 10,...

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This diagram shows a block of stainless steel. The mass of the block is 930g.

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Answer:7.75

Step-by-step explanation:

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Trevon, Leah, and Beth are playing a computer game. Trevon scores -8. Beth’s score was 3/4 of trevons score, and Leah’s score wa

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2 years ago

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2 years ago

Which choice is the solution for this system ? 2x − 5y = 14 x + 3 2 y = 5

VashaNatasha [74]

Answer:

The required solution is (5.75,-0.5). It can be written as $(\frac{11}{4},-\frac{1}{2})$ .

Step-by-step explanation:

The given equations are

$2x-5y=14$ .... (1)

$x+\frac{3}{2}y=5$ .... (2)

Multiply the equation (2) by 2.

$2x+3y=10$ .... (3)

Subtract equation (1) from equation (3).

$2x+3y-(2x-5y)=10-14$

$2x+3y-2x+5y=-4$

$8y=-4$

$y=-\frac{1}{2}=-0.5$

Put this value in equation (1).

$2x-5(-0.5)=14$

$2x+2.5=14$

$2x=11.5$

$x=5.75$

Therefore the required solution is (5.75,-0.5). It can be written as $(\frac{11}{4},-\frac{1}{2})$ .

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2 years ago