If a gas tank can hold 30 gallons, how many gallons does it contain when it is three-fifths full?

3/5 of 30 = (3/5)*30

3/5 of 30 = (3/5)*303/5 of 30 = (3*30)/5

3/5 of 30 = (3/5)*303/5 of 30 = (3*30)/53/5 of 30 = 90/5

3/5 of 30 = (3/5)*303/5 of 30 = (3*30)/53/5 of 30 = 90/53/5 of 30 = 18

3/5 of 30 = (3/5)*303/5 of 30 = (3*30)/53/5 of 30 = 90/53/5 of 30 = 18So when the tank is 3/5 full, there are 18 gallons in the tank.

b because it contains 40% of the possible results from the random list.  

0,1,2,3 v 4,5,6,7,8,9  

4 integers to 6 integers  

40% success vs 60% fail

step-by-step explanation: