Answer:
x= -0.5
Step-by-step explanation:
Isolate the y
add 7 to both sides
y - 7 = 21
y - 7 (+7) = 21 (+7)
y = 21 + 7
y = 28
28 is your answer
hope this helps
Answer:
A.
Step-by-step explanation:
It just is trust
Since the ratio is 2:10 the total must be a multiple of twelve, and in this case is 12. So each part is 1/12 of the total or one.
So Gabriel needs to mix 2kg of compost with 10kg of potting soil.