Answer:
Well thats not good
Step-by-step explanation:
is this a test? i like tests.
Answer:
Step-by-step explanation:
I will assume that you meant: (-3/7)(y-28) - (1/21)y
Using the distributive property of multiplication, we get:
(-3/7)y + (3/7)(28) - (1/21)y
Let's first reudce the middle term. We get: 12
Then we have:
(-3/7)y + 12 - (1/21)y
Here there are two different denominators. We must combine the y terms. The LCD here is 21. Multiplying (-3/7)y by 21/21, we get the equivalent:
-9y
------ + 12 - (1/21)y
21
or:
-9y 21
------ + 12----- - (1/21)y
21 21
Combining the y terms, we get (-10/21)y:
-10y 252
------- + -------- = (1/21)(-10y + 252)
21 21
Answer:
not proportional because the 8 hours supposed to equal 250
We know, mass = Density * Volume
mass = 9000 * 0.8 g
mass = 7200 g = 7.2 Kg
So, you final answer is 7.2 Kg
Hope this helps!
