4 years ago

What is the solution to the problem rounded to the correct number of significant figures

Mathematics

2 answers:

kogti [31]4 years ago

7 0

32.841 is the answer

vagabundo [1.1K]4 years ago

6 0

8.01 X 4.1 = 32.841

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Given that, total of $6000 was invested

Let "x" be the amount invested at 3 % interest

Then, (6000 - x) is the amount invested at 8 % interest

Given that,

The total yearly interest amounted to $380

Then, we can frame a equation as:

$x \times 3 \% + (6000 - x) \times 8 \% = 380$

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$x \times \frac{3}{100} + (6000-x) \times \frac{8}{100} = 380\\\\0.03x + (6000-x) \times 0.08 = 380\\\\0.03x + 480 - 0.08x = 380\\\\-0.05x = -100\\\\\text{Divide both sides by -0.05 }\\\\x = 2000$

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