1.) how many rooms did the chromebook not work in?
2.)how many more rooms did the macbooks work in than the chromebook?
3.mrs scott has u try a lenevo laptop instead .if the total of rooms in the school stays the same and the amaount of rooms the lenovo works into the amaount of rooms the lenevo does not work in is 1 to 2 then does the lenevo work betetr than eathir the chrome book or the macbook? explain using numbers as evidece create a tape diagram for the macbook create a ratio table for the macbook create a tape diagram for the chrome book create a ratio table for the macbook

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?