Stuart wants to find the value of 3 - 2 Part A
Before Stuart can subtract, he needs to rewrite both fractions with a common denominator. Drag a number or an expression into each box to show how to write equivalen
fractions for 3 and 2 so the new fractions have a common denominator.
33 = 3+ 10
2} = 2+1-21
:
::
X
*8
G
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George writes the mixed number as sum and uses the distributive property 1/2.-2/5=1/2-2+2/5=1/2

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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