9) Use dimensional analysis to solve the problem. A student is in class 400 minutes every day for 5 days each week. How many seconds is this?

Conversion factors: 1 day = 24 hours; 1 hour = 60 minutes; 1 minute = 60 seconds
12,000 sec
120,000 sec
1,200,000 sec
60,000 sec

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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c

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it would be c

answer: 3.26019516

step-by-step explanation:

answer: im sorry i dont get it

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