Which statements are true? check all that apply. the central angle measure created by the shaded region is 40°. the central angle measure created by the shaded region is 20°. the ratio of the measure of ∠lom to the measure of the whole circle is . circle o can be divided into a total of 9 sectors equal in area to sector lom. circle o can be divided into a total of 10 sectors equal in area to sector lom.

Ais the correct answer

So the first thing we do is to multiply the top equation by 3. the reason i want to do this is i notice there will be a 6y on both equations and can possibly add/subtract them. so we get 6y = -3x + 27. adding that and the second equation we get 6x = 27-15 which is 12. divide by 6 and we get 2. ∴ x = 2. substituting 2 into the first equation we get 2y = -2 + 9 which is 7. divide by 2 and we get 7/2. ∴ y = 7/2, x = 2.