Select the correct answer.
The concession stand at the high school football stadium sells hot dogs and hamburgers to raise money for the high school athletic programs.
Each hot dog sold earns the programs $0.50, and each hamburger sold earns $0.75. This week, the concession stand sold a combination of
230 hot dogs and hamburgers and earned $138.50 for the athletic programs. If x represents the number of hot dogs sold and y represents
the number of hamburgers sold, which system of equations represents this situation?
OA 0.503 + 0.75y = 230
I + y = 138.50
OB.
0.750 + 0.50y = 138.50
I + y = 230
OC. 0.75+ 0.50y = 230
I + y = 138.50
OD. 0.503 + 0.75y = 138.50
+ y = 230
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I've been working on this for a few days and i just don't understand, it's due in a few hours. you. the direction of a vector is defined as the angle of the vector in relation to a horizontal line. as a standard, this angle is measured counterclockwise from the positive x-axis. the direction or angle of v in the diagram is α. part a: how can you use trigonometric ratios to calculate the direction α of a general vector v = < x, y> similar to the diagram? part b suppose that vector v lies in quadrant ii, quadrant iii, or quadrant iv. how can you use trigonometric ratios to calculate the direction (i. e., angle) of the vector in each of these quadrants with respect to the positive x-axis? the angle between the vector and the positive x-axis will be greater than 90 degrees in each case. part c now try a numerical problem. what is the direction of the vector w = < -1, 6 > ?