James is taking a test to be on a game show to win money. He has to answer 75 questions or more correctly in 3 rounds in order to be on the show. In the first round, he answered 80% of 50 questions correctly. In the second round, he answered 75% of 40 questions correctly, and in the third round, he answered 20% of 30 questions correctly. Did James win a spot on the game show? How many questions did James answer correctly?

8

Step-by-step explanation:

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

in problems involving proportions, we can use cross products to test whether two ratios are equal and form a proportion. to find the cross products of a proportion, we multiply the outer terms, called the extremes, and the middle terms, called the means.

hope it