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3 years ago

Using the linear equation 3x+2y=6, express y in terms of x

Mathematics

2 answers:

wolverine [178]3 years ago

7 0

Answer: any number

Step-by-step explanation: 3x+2y=6, 2y=6-3x, we want y by itself, so divide by 2 from both sides, y=3-1.5x, then we plug it into the equation,3x+2(3-1.5)=6, then solve. 3x+6-3x=6, 3x-3x=0,so 6=6, y could be any possible answer

omeli [17]3 years ago

3 0

$y = \frac{ - 3}{2} x + 3$

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Sodium - 24 has a hourly decay rate of 5%

allsm [11]

Answer:

The amount of sodium- 24 remain after 90 hours of decay is 8.90 gram

Step-by-step explanation:

Given as :

The amount of sodium-24 = 900 gram

The decay rate of sodium is 5 %

The time period for its decay = 90 hours

$Final value of sodium -24 = initial value \times (1 - \frac{Rate}{100})^{Time}$

Or, $Final value of sodium -24 = 900 gram \times (1 - \frac{5}{100})^{90}$

Or, Final value of sodium -24 = 900 g × $(0.95)^{90}$

Or, Final value of sodium -24 = 900 g × $(9.88)^{-3}$

∴ Final value of sodium -24 = 8.899 gram

Hence The amount of sodium- 24 remain after 90 hours of decay is 8.90 gram Answer

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Aleksandr-060686 [28]

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3 years ago

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masya89 [10]

Answer:

$\huge\boxed{44}$

Step-by-step explanation:

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