Acar went 348 miles in 6 hours travelling part of the time at 51 miles per hour and part of the time at 61 miles per hour how long did the car travel at each speed

Answer d; a supplementary angle = 180°, so if that angle = 150°, y would = 30°.

The answer would he -4,-2 because the points are just on the opposite side. since the x axis is +4 it's going to he -4 and since the y axis is -2 it stays there because whaen rotated it stays in the third quadrant