3x + 5y = 30 x + 3y = 10 which action creates an equivalent system that will eliminate one variable when they are combined? multiply the second equation by −1 to get −x − 3y = −10. multiply the second equation by −3 to get −3x − 9y = −30. multiply the first equation by −1 to get −3x − 5y = −30. multiply the first equation by −3 to get −9x − 15y = −90.

the formula of a slope:

we have the points (-2, 7) and (2, 3). substitute:

answer: the slope is equal -1.

The answer is 270 cars.you can do this by making a proportional relationship. for instance, 200 is the whole we are using, so on a “number line” 200 would be over 100%. now, since he sells 35% more, add 35% to 100% to get 135% on the other side of the “number line” on the bottom half, leaving the top half empty.cross multiply 200 by 135 then divide by 100 to get your answer. i hope this , if it did, , if you don’t mind, giving me brainiest! 200/100% } 200 • 135 /100 ? /135%