Mary traveled a total of 10 hours and a total of 1850 miles by car and by plane. Driving to the airport by car, she averaged 50 miles per hour. In the air, the plane averaged 300 miles per hour. How long did it take her to drive to the airport?

answer: option a.

step-by-step explanation:

you know that the quadrilateral opqr ( a four sided figure) is inscribed in circle. this means that all its vertices are on the circle.

then, by definition, the opposite angles of the quadrilateral are supplementary, this means that the sum of their measures is 180 degrees.

you can observe in the figure that the angles ∠opq   and the angle ∠orq   are opposite, therefore:

then, can be used to d to calculate the measure of ∠opq

thats one

step-by-step explanation:

median- 36f

mode - none

mean- 33.7 ~ 34f