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3 years ago

At a carnival, Rafael bought 9 packs of 16 tickets each. He used 39 of the tickets so far. How many tickets does he have left?

Mathematics

2 answers:

dybincka [34]3 years ago

7 0

Answer:

105

Step-by-step explanation:

9 ×16=144

144-39==105

Alex777 [14]3 years ago

6 0

He has 105 tickets left Because 9x16-39

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3 years ago

What is the ratio of the intensities of an earthquake PP wave passing through the Earth and detected at two points 19 kmkm and 4

Tamiku [17]

Answer:

The ratio of the intensities is roughly 6:1.

Step-by-step explanation:

The intensity I() of an earthquake wave is given by:

$I = \frac{P}{4\pi d^{2}}$

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Hence, the ratio of the intensities of an earthquake wave passing through the Earth and detected at two points 19 km and 46 km from the source is:

$\frac{I_{1}}{I_{2}} = \frac{P/4\pi d_{1}^{2}}{P/4\pi d_{2}^{2}}$

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$\frac{I_{1}}{I_{2}} = \frac{46 km^{2}}{19 km^{2}}$

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Therefore, the ratio of the intensities is roughly 6:1.

I hope it helps you!

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3 years ago

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