Terry sold 30 cans of paint at a total cost of $425. a can of paint holding one quart cost $10 each. a can of paint holding one gallon cost $15 each. the equations and graph below can be used to determine the number of cans of paint terry sold, where x represents the number of quarts of paint, and y represents the number of gallons of paint.

number of cans: x + y = 30
total cost of cans: 10x + 15y = 425

a. 42 quarts, 28 gallons

b. 25 quarts, 5 gallons

c. 5 quarts, 25 gallons

d. 15 quarts, 15 gallons

Step-by-step explanation:

from the graph above, the intersect of both lines would give the answer...

C. 5 quarts, 25 gallons

You can substitute the values in both equations to verify the answer

answer: i believe c. is the answer sorry if i am wrong

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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