Answer:
z/6+15=24
We move all terms to the left:
z/6+15-(24)=0
We add all the numbers together, and all the variables
z/6-9=0
We multiply all the terms by the denominator
z-9*6=0
We add all the numbers together, and all the variables
z-54=0
We move all terms containing z to the left, all other terms to the right
z=54
Step-by-step explanation: hope it helps
Answer:
The answer is -3
Step-by-step explanation:
1. Distribute -7z + 21 = 42
2. Subtract 42 - 21 = 21
3. -7z = 21
4. Divide 21 / -7 = -3
5. Answer is -3
If the big gear makes 2 circles and the small gear makes 5 circles they will both be on 90 sec so it will take 90 seconds I think. My dad helped me with this one :D
Answer:
millimeters.
Step-by-step explanation:
We have been given that a leak in a water tank causes the water level to decrease by 
millimeters each second.
To find the decrease in water level in 5 hours let us multiply water decrease in one second by number of seconds in 5 hours.
Using the exponent product rule let us add the exponents with same base (10).
Therefore, the water level in tank decreased millimeters in 5 hours.
