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Mathematics, 11.11.2019 06:31 ineedhelp2285
Aparty rental company has chairs and tables for rent. the total cost to rent 2 chairs and 3 tables is $30. the total cost to rent 4 chairs and 8 tables is $77. what is the cost to rent each chair and each table?
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Mathematics, 21.06.2019 16:00
Asalesperson earns $320 per week plus 8% of her weekly sales. the expression representing her earnings is 320 + 0.08x. which of the following describes the sales necessary for the salesperson to earn at least $1000 in the one week?
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Mathematics, 22.06.2019 00:00
Aspacecraft can attain a stable orbit 300 kilometers above earth if it reaches a velocity of 7.7 kilometers per second. the formula for a rocket's maximum velocity v in kilometers per second is vequalsminus0.0098tplusc ln upper r, where t is the firing time in seconds, c is the velocity of the exhaust in kilometers per second, and r is the ratio of the mass of the rocket filled with fuel to the mass of the rocket without fuel. find the velocity of a spacecraft whose booster rocket has a mass ratio of 20, an exhaust velocity of 2.1 km/s, and a firing time of 15 s. can the spacecraft achieve a stable orbit 300 km above earth?
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Aparty rental company has chairs and tables for rent. the total cost to rent 2 chairs and 3 tables i...
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