Answer: N = 11
Step-by-step explanation:
Add 8 on both sides
-10n = -110
divide -110 by -10
Answer:
Step-by-step explanation:
Let
x -----> the number of slabs of butter
y ----> the number of cups of butter
we know that
The ratio is
so
That means-----> The number of slabs of butter must be equal to the number of cups of butter
In this problem
we have
Remember that
so
The number of slabs of butter needed must be equal to the number of cups of butter
therefore
1: Solve for either x or y in one of the equations. So x + y = -1 is y = -x -1
2: substitute the new equation in the opposite equation. So x - (-x - 1) = 7
3: distribute the negative. X + x + 1 = 7
4: combine like terms. 2x + 1 = 7
5: solve for x. Subtract 1 on both sides. 2x = 6
6: divide by 2 to get x by itself. X = 3
7: plug the new value of x into one of the ORIGINAL equations. 3 + y = -1
8: solve for y. Subtract 3 on both sides.
Y = -4
9: the solution is written as (x,y) so the solution would be (3, -4)
A is the right answer i think
