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marshall27 [118]
2 years ago
10

Gerry has two different part-time jobs, and he had work 20 hours per week at each job. He earns $8 per hour at one job. Which ex

pression represents how much Gerry earned last week if he earns d dollars per hour at this other job? A- 20+20d B- 160+ 20d C- 40+ d D- 160+ 8d
Mathematics
1 answer:
FromTheMoon [43]2 years ago
3 0
B

And what job he works 20 hours and eight dollars per hour equals 160 in other job you only know he works 20 hours
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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{d_{2}^{2}}{d_{1}^{2}}

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\frac{I_{1}}{I_{2}} = 5.9:1

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I hope it helps you!    

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