In this big ol' word problem, this is just an instance of basic multiplication/division.
If it takes it 1 hour for 3 meters...
12 ÷ 3 = 4.
It would take 4 hours for the water level to change to 12 meters.
Homogeneous mixture: solution
Heterogeneous mixture: colloid and suspension
Well we have to substitute the 3 in for N which would make the equation look likes this - m + (3)2. You then multiply the 3 and 2 and get 6. Then substitute the 2 that we know is M, in for M. The new equation is now 2 + 6 which then adds up to 8. So your answer is 8! Hope it helps!
Step-by-step explanation:
everything can be found in the picture
<h3>Steps for solving:</h3><h3 />
1. First you want to simplify the left side by distributing the 7 through both of your terms inside the set of parentheses.
2. This leaves us with 7c + 28 - 19 = -26
3. We can simplify one step further on the left side
by subtracting 28 - 19 to get 9.
4. So we have 7c + 9 = -26.
5. Now subtract 5 from both sides to get 7c = -35.
6. Finish things off by dividing both sides by 7 and we find that c = -5