Abox contains 88 green marbles and 18 white marbles. if the first marble chosen was a green marble, what is the probability of choosing, without replacement, a white marble?

Step-by-step explanation:

Given : Number of green marbles in the box =88

Number of white marbles in the box = 18

Total marbles : 88+18=106

If the first marbles is already chosen was a green, then the number of white marbles remains same but the total marbles will be 105

Now, the probability of choosing, without replacement, a white marble :-

The probability of choosing, without replacement, a white marble =

282 6/7 cm^2

step-by-step explanation:

answer: a video game has three difficulty levels: easy, medium, and expert. the game's scoring works in such a way that a player has to score a fixed number of points to advance to the next level, and then the scoring starts over. the total score needed to clear all three difficulty levels is 7,500. two times the number of points needed to clear the easy level is 500 more than the number of points needed to clear the medium level. twice the number of points needed to clear the medium difficulty level is 1,500 more than the number of points needed to clear the expert level. if x, y, and z represent the easy, medium, and expert levels, respectively, and a is the coefficient matrix of the system of equations modeling this situation, identify the inverse matrix, a-1, and the solution matrix, x, of the system of equations.

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step-by-step explanation: