Answer:
Step-by-step explanation:
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Answer: 92.50%
From the given problem, we can say that the total volume of the concentration is:

The initial volume of the solution is 555 mL. After the evaporation, the 50% sucrose solution lost 255 mL.
To find the concentration of the remaining 300 mL, we will use the following formula:

Where:
C₁ = initial concentration
C₂ = final concentration
V₁ = initial volume
V₂ = final volume
From the given, we know that:
C₁ = 50% = 0.50
C₂ = ?
V₁ = 555 mL
V₂ = 300 mL
Substitute these to the formula and we will get:

Therefore, we can say that the sucrose concentration in the remaining 300mL is 92.50%
75 degrees or D
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Answer:
5 and 4
Step-by-step explanation:
2(x-3)^2➡ 2×(x^2-6x+9) ➡ 2x^2-12x+18 = 6x-22
transfer and add like terms
2x^2-12x-6x=-22-18
2x^2-18x = -40
2x^2 - 18x + 40 = 0
(2x-8)(x-5)
x = 5 or, x = 8/2 ➡ 4