Let x and y be the numbers;
We have x + 2y = 9 and 2x + y = 21;
Then, x = 9 - 2y;
Finally, 2(9-2y) + y = 21 ;
18 - 4y + y = 21;
18 - 3y = 21;
-3y = 3;
y = - 1;
x = 9 - 2× (-1);
x = 9 + 2 ;
x = 11;
Answer:
190
Step-by-step explanation:
Just multiply the 2 together you bum
27.5
Follow the order of operations and start by solving the parentheses.
18 + 19 / 2
Now, do the division.
18 + 9.5
Finally, solve the addition.
27.5
I hope this helps you
2400.12%
2400.12/100
288
Answer:
Step-by-step explanation:
It can be shown that all four sides of this figure have the same length. This, in turn, is the definition of a rhombus.