Answer:
56 carrots
Step-by-step explanation:
Because 7 x 8 is 56
Answer:
![x=7](https://tex.z-dn.net/?f=x%3D7)
Step-by-step explanation:
We can add the same quantity to both sides of the equations, and still have an equivalent equation. Let's add
to both sides, then sum like terms
![5-x +x+2 = -2 +x+2\\5+2 = x\\7=x](https://tex.z-dn.net/?f=5-x%20%2Bx%2B2%20%3D%20-2%20%2Bx%2B2%5C%5C5%2B2%20%3D%20x%5C%5C7%3Dx)
(this is the rule that allows us to move items from one side do the other of the equal sign by changing its sign)
At this point we have a solution, let's replace it to verify
![5-(7) = -2\\-2=-2](https://tex.z-dn.net/?f=5-%287%29%20%3D%20-2%5C%5C-2%3D-2)
Answer:
That's correct. The answer would be 16.3 when you add them both together.
In this item, we are going to use the concepts of total mass balance and component mass balance. We let the amount of the pure acid be equal to x.
Total mass balance:
7 + x = 7 + x
Hence, the total amount of the resulting solution is 7 + x
Component mass balance,
(1)(x) + (0.4)(7) = (0.7)(7 + x)
The value of x from the component mass balance is equal to 7.
<em>Answer: 7 gallons</em>