Your to this is answer is b.
-5*-3=+15
-3*1=-3
15-3=12
1*-3=-3
-3*1=-3
-3-3=-6
Answer:
Step-by-step explanation:
A proportion could be used.
With 2 parts of compost and 6 parts potting soil, you would end up with 8 total parts.
So it can be written as a ratio of compost to total mix, or
The problem states 10 kg are needed in total, and the variable would be the amount of compost
As a ratio it would be .
Use the ratios to write a proportion.
Multiply both sides of the equation by 10
Convert to a decimal if desired.
12 x 8 = 96 so answer is 96
Distribute first
25-2z-10z=-12z-24-1
combine like terms
25-12z=-12z-25
add 12z to both sides
25=-25
no solution because the right side has a negative