The last 30 times that eric has played his video game he has scored over 100,000 points 40% of the time. what prediction can you make about the next 15 times eric plays his video game?

A)  

He will score over 100,000 points 4 times.  

B)  

He will score over 100,000 points 6 times.  

C)  

He will score over 100,000 points 8 times.  

D)  

He will score over 100,000 points 12 times.

Step-by-step explanation:

Answer is B

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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answers

rauschg

rauschg · hand

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step-by-step explanation: