9. x=-4y + 11
x + 3y = 9
how do you solve this problem using elimination

Suppose that an airline uses a seat width of 16.516.5 in. assume men have hip breadths that are normally distributed with a mean of 14.414.4 in. and a standard deviation of 0.90.9 in. complete parts (a) through (c) below. (a) find the probability that if an individual man is randomly selected, his hip breadth will be greater than 16.516.5 in. the probability is nothing. (round to four decimal places as needed.)

Two angles are complementary. the larger angle is 36 more than the smaller angle. what is the measure of the larger angle?

Gabrielle's age is two times mikhail's age. the sum of their ages is 84. what is mikhail's age?