Suppose that an individual has a body fat percentage of 17.2% and weighs 144 pounds. How many pounds of her weight is made up of fat?

24.768

Step-by-step explanation:

we can start by finding how many pounds one percent is by solving 144/100

this gets you 1.44 - which means one percent of her total body weight is 1.44 pounds

then, we multiply the number of percent [17.2] by the value of 1% [1.44]

17.2 x 1.77 = 24.768 lbs

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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