What is the value of x?

x = 70

Step-by-step explanation:

The two angles are same side interior angles.

Same side interior angles  add to 180 when we have parallel lines

45+ (2x-5) = 180

Combine like terms

40+2x= 180

Subtract 40 from each side

40-40+2x= 180-40

2x =140

Divide by 2

2x/2 =140/2

x = 70

y=1/4x-4

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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rauschg

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