Answer:
66 gallons
Step-by-step explanation:
Given that initially 160 gallons of a solution containing 12% salt.
So, the initial amount of salt = 12% of 160 = 12/100 x 160 = 19.2 gallons.
Let x gallons of water get evaporated so that the remaining solution contains 20% salt.
The remaining amount of solution = 160-x gallons.
As the initial amount of salt is still in the solution which is equal to 20% of the remaining solution, so
19.2 = 20% of (160-x)

gallons
Hence, 66 gallons of water must be evaporated to get a 20% salt solution.
3500 x 120% = 4200
4200 - 900 = 3300
3300 ÷ 6 = 550 <<< answer
hope it helps!
Answer: "11 and 12" .
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11² = 121 ;
12² = 144;
140 falls between 121 and 144 .
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Answer:
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Answer:
Only Francesca is correct
Step-by-step explanation:
I just did it