The length and breadth of a rectangular plot are in the ratio of 4:3, if perimeter is 140m, it's area will be

length of a rectangular is 4x

breadth of a rectangular is 3x

perimeter is 140m

perimeter of rectangular is

put the value and you got the value of x

then;

find area

then put the value of length and breadth and x also

then you got the answer...

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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