Answer:
Without looking, he guesses that half of the marbles in the b… ... of the marbles in the bag are green. He randomly selected 1 marble from the bag, recorded the color, and returned the marble to the bag. After 15 trials, Mark has drawn 10 green marbles and 5 white marbles.
Step-by-step explanation:
Answer:
Option c) is correct.
That is x-5y=12 and 3x+2y=-15 are the system of linear equations satisfies the point (-3,3) so this is the solution.
Step-by-step explanation:
To verify that which system of linear equations having the solution (-3,-3)
Let
and
To solve it we have to use elimination method
First multiply the equation(1) into 3 we get
Now subtracting the equations (2)and (3) the signs may vary in the second equation we get
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Now substitue the value y=-3 in equation (1) we get
Therefore x=-3
Therefore the solution is (-3,-3)
Therefore Option c) is correct.
That is x-5y=12 and 3x+2y=-15 are the system of linear equations satisfies the point (-3,3) so the solution is (-3,-3).
The answer: " 2,000 (feet) " .
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1 measured in. = 24,000 actual inches.
24,000 inches = _?_ ft.
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Note: 12 in. = 1 ft. (exact conversion) ;
24,000 in. * (1 ft. / 12 in) = (24,000 / 12) ft. = 2,000 ft.
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The answer is: 2000 ft.
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