Writing and solving an equation of ratios is the way to go here. See if you can figure out why the following is correct:
x+3 x
----- = -------
12 x+3
Then (x+3)^2 = 12x, and x^2 + 6x + 9 = 12x, so that x^2 - 6x + 9 = 0
This is the square of (x - 3). Thus, x-3 = 0, and x = 3.
The value of x is 3.
Miss Sarah will need the same amount as Mr. Tom if she divides 1/16 by 2 and get 1/8. So they will have the same amount of cheese as the other person does
answer:
(x,y,z) = (1,1,0)
Explanation:
|1 0 0 | 1 | r1 - r3 -> r1
|0 1 0 | 1 | r2 - r3 -> r1
|0 0 1 | 0 |
first row⬆️
second row:
third row rest the same