If 12 bottles of perfect water weigh a total of 8 kilograms (kg), what is the weight of 15 bottles?

Mathematics

2 answers:

frutty [35]3 years ago

8 0

12 bottles of perfect water weigh = 8kg... so 15 bottles weigh = 15x8/12(cross multiplication) = 10kg. Hope it helps.

Lisa [10]3 years ago

7 0

8 / 12 will give u the amount per bottle

the answer to this is 0.666666667

Now multiply 0.666666667 by 15 to get your answer

your answer is 10

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madam [21]

Answer:

Answer:

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Step-by-step explanation:

$ut = \sqrt{ {6}^{2} + {5}^{2} } \\ \sqrt{36 + 25} \\ \sqrt{61 } \\ using \: cosine \: rule \\ cos \: u = \frac{ {5}^{2} + 61 - 36 }{2 \times 5 \times \sqrt{61} } \\ \\ = \frac{25 + 61 - 36}{78} \\ \\ = \frac{50}{78 } \\ \cos \: u = 0.64 \\ \m∠U.: = 50.2$