3x - 2y = 19

x + y = 8

i just dont understand

Is 3x squared a factor of 12x squared

three less then six times a number is the same as twelve more then four times a number. what is the number?

If two students from the high school are chosen at random, one after the other, to represent the school at a leadership conference what is the probability that the second student chosen is a sophomore girl given that the first student chosen was a

Simplify this equation. (x) + (x+3) + (x-2) + 3 (x+3) - 1 = 87

Use the substitution method to solve the system of equations. Choose the correct ordered pair. 2x - y = 10 2x - 2y = 4 O A. (2,-2) B. (2-1) OC. (8,6) O D. (7,4)

Both triangles are similar. The area of the smaller triangle is about 270 ft^2. What is the best approximation for the larger triangle?

The teacher selerated her class of twenty eight students into two groups. one group has four more than twice as many students as the other group how many students are in each group

Carla drops a carton of eggs. out of 12 eggs, 7 eggs are cracked. as a decimal, what fraction of the eggs are not cracked? [round to 2 places.]

What is 16,473 rounded to the nearest hundred and thousand

19.83 rounded to the nearest tenth