Answer:
210
Step-by-step explanation: so 5 times 12 120 plus 100 is 210
Let there be x quarts of the 20% salt solution, and (25 - x) quarts of the 80% salt solution.
Then the total amount of salt in the 20% portion would be 0.2x, while that from the 80% portion would be (0.8)(25 - x). This would have to total up to (0.44)(25) in the final solution, so the equation is:
0.2x + 0.8(25 - x) = (0.44)(25)
-0.6x + 20 = 11
x = 15 quarts of the 20% salt solution
25 - x = 10 quarts of the 80% salt solution
Assignment: ![\bold{Solve \ And \ Check \ Equation: \ 9=q-4}](https://tex.z-dn.net/?f=%5Cbold%7BSolve%20%5C%20And%20%5C%20Check%20%5C%20Equation%3A%20%5C%209%3Dq-4%7D)
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Answer: ![\boxed{\bold{q=13}}](https://tex.z-dn.net/?f=%5Cboxed%7B%5Cbold%7Bq%3D13%7D%7D)
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Explanation: ![\downarrow\downarrow\downarrow](https://tex.z-dn.net/?f=%5Cdownarrow%5Cdownarrow%5Cdownarrow)
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[ Step One ] Switch Sides
![\bold{q-4=9}](https://tex.z-dn.net/?f=%5Cbold%7Bq-4%3D9%7D)
[ Step Two ] Add 4 To Both Sides
![\bold{q-4+4=9+4}](https://tex.z-dn.net/?f=%5Cbold%7Bq-4%2B4%3D9%2B4%7D)
[ Step Three ] Simplify
![\bold{q=13}](https://tex.z-dn.net/?f=%5Cbold%7Bq%3D13%7D)
[ Step Four ] Check Your Work
![\bold{13 \ - \ 4 \ = \ 9}](https://tex.z-dn.net/?f=%5Cbold%7B13%20%5C%20-%20%5C%204%20%5C%20%3D%20%5C%209%7D)
[ Step Five ] Question: Is Equation Correct
![\bold{Equation \ Is \ Correct, \ Therefore \ q=13}](https://tex.z-dn.net/?f=%5Cbold%7BEquation%20%5C%20Is%20%5C%20Correct%2C%20%5C%20Therefore%20%5C%20q%3D13%7D)
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The answer is (2x-1)(2x-3)
Answer:
X = 4
Step-by-step explanation:
5x + 3 = 23
Subtract 3 from both sides: 5x = 20
Divide both sides by 5: x = 4