Answer:
A) (-6,3)
Step-by-step explanation:
-x-8y=-18
x +9y=21
Add the two equations together to eliminate x
-x-8y=-18
x +9y=21
-------------------
y = 3
Now we need to find x
x +9y = 21
Substitute in y
x +9(3) =21
x+27 = 21
Subtract 27 from each side
x+27-27 = 21-27
x = -6
Answer:
<h2>D) y = 2x - 5</h2>
Step-by-step explanation:
A partial variation is defined as a relation which has the form
, where
is the slope and
is the y-intercept.
So, by definition, the right answer is D) y=2x-5, it's a partial variation, and it doesn't pass through the origin of the coordinate system.
0.4 is 10 times as much as 0.04 and 0.1 is 10 times as much as 0.01 and 1/10 of 1
0.9 is 10 times as much as 0.09 and 1/10 of 9
Answer:
2. n = 11
4. g = -2
6. t = 21
8. n = 4
10. y = -1
Step-by-step explanation:
2. 63 = -3(1 - 2n)
Dividing both the side by negative 3 we get

4. -g + 2(3 + g) = -4(g + 1)
First we will open the bracket by distributive property A( B +C) = AB + AC

6.-3(t +5 ) + (4t + 2) = 8
Using distributive property A( B +C) = AB + AC we get

8. -8 - n = -3(2n -4)
Using distributive property A( B +C) = AB + AC we get

10. -4( 2 - y) + 3y = 3(y - 4)
Using distributive property A( B +C) = AB + AC we get
