Determinado automovel, apos sua compra, perde 10% do valor ano a ano nos 3 preimeiros anos. Calcule o valor do automovel ao fina
1 answer:
Answer:
The value of the car after 3 years is R$58.320.
O valor do carro ao final desse período é R$58.320.
Step-by-step explanation:
The value of the car after t years is given by the following equation:
In which V(0) is the initial value and r is the yearly depreciation rate.
In this question, we have that:
So
Value of the car at the end of 3 years:
The value of the car after 3 years is R$58.320.
O valor do carro ao final desse período é R$58.320.
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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%