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Sergio039 [100]
3 years ago
14

What is the value of y in the equation 5x+2y=20, when x=0.3

Mathematics
1 answer:
Rasek [7]3 years ago
8 0

5x+2y=20

Substitute 0.3 for x

5(0.3)+2y=20

Multiply 5 by 0.3

1.5+2y=20

Subtract 1.5 from both sides

2y=18.5

Divide 2 on both sides

Final Answer: y= 9.25

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Step-by-step explanation:

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The amount in kilograms, a, of a radioactive element that remains after t hours can be modeled by the equation a= 0.65(0.92)to t
elena-14-01-66 [18.8K]

Answer:

The rate of decrease is 8%

Step-by-step explanation:

we know that

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3 years ago
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