Lydia wants to become a stuntwoman for the movies. She finds a great school online and gets accepted. The only
problem is that the school is in California and Lydia doesn't have a car or money for a plane ticket. It will cost her
$2,000 to buy a car that gets 30 miles per gallon. The trip is 1200 miles and gas is $4.00 per gallon. It is $2,500 for the
plane ticket. Which would be cheaper for her the car or the plane?
The aeroplane would be cheaper.
she only has to spend on the pane which would be $2,500.
It is coming around $2,800 (cost of car+gas bills) if she chooses to buy car.
Hope it helps!
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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