Each chef at "sushi emperor" prepares 15 regular rolls and 20 vegetarian rolls daily. on tuesday, each customer ate 2 regular rolls and 3 vegetarian rolls. by the end of the day, 4 regular rolls and 1 vegetarian roll remained uneaten. how many chefs and how many customers were in "sushi emperor" on tuesday?

Abcd is a parallelogram find the valuse of x

If $740 is invested at an interest rate of 11% per year and is compounded continuously, how much will the investment be worth in 7 years? use the continuous compound interest formula a = pert.

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?