Answer:
Um wat?
Step-by-step explanation:
Answer:
6 =k
Step-by-step explanation:
Given the equation for inverse variation
xy = k
We know x=-3 and y = -2
Substituting these values in
(-3) (-2) = k
6 =k
Answer:
PR=22
Step-by-step explanation:
3x+6x+4=14x-6
9x+4=14x-6
10=5x
x=2
Plug in
3(2)
6
6(2)+4
12+4
16
16+6
22
So the bottom should equal 22
14(2)-6
28-6
22
Hope this helps
Brainliest would be appreciated
Answer:
Solve for y in the second equation
Step-by-step explanation:
We assume your system is ...
Dividing <em>the </em><em>second equation</em> by 3 gives ...
-3x +y = 1
so an expression for y without fractions can be found by <em>solving for y</em>, that is, by adding 3x:
y = 3x +1
_____
<em>Comment on alternate solution</em>
We'd be tempted to solve the first equation for -9x and substitute for that.
-9x = 10 -4y
(10 -4y) +3y = 3 . . . . . substitute for -9x
-y = -7 . . . . . . . . . . . . . simplify, subtract 10
y = 7 . . . . . . . . . . . . . . multiply by -1
