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Answers by Bitlamas

Answers by Bitlamas
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An equation for loudness L in decibels is given by L= 10LogR where R is the sound’s relative intensity. An air-raid siren can reach 150 decibels and jet engine noise can reach 120 decibels. How many times
answered Mar 12, 2019
4 votes
234k views
Mr. smith earns $200 per week working at a clothing store. in addition, he earns 3% commission on all of his sales. last week, he sold $1800 worth of clothes. what was mr. smith's total income for that
answered Oct 14, 2018
3 votes
30.2k views
Eight students are competing for 1st, 2nd, 3rd, and 4th violin chair in the school’s orchestra. How many different ways can all four chairs be filled?
answered May 31, 2018
2 votes
97.7k views
Solve the system of linear equations using substitution. The system is x=2y + 7 and 3x-2y=3
answered Apr 16, 2018
5 votes
135k views
A stretched spring has an elastic potential energy of 35 J when it is stretched 0.54 m. What is the spring constant of the spring? Round your answer to two significant figures.
answered Mar 5, 2018
6 votes
95.1k views
Brad paid for a book that cost $13.40 with a $20 bill. What is the least combination of coins and bills that can be used to make his change? What are two other different combinations of coins and bills
answered Nov 15, 2017
5 votes
13.5k views
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