Alice takes 1/3 of the pennies from the jar. then brett takes 1/3 of the remaining pennies from the jar. finally, carla takes 1/3 of the remaining pennies from the jar, leaving 40 pennies in the jar. how many pennies were in the door at the start?

135 pennies

Step-by-step explanation:

 x= pennies in the door at the start

x-1/3x-1/3(x-1/3x)-1/3(x-1/3x-1/3(x-1/3x))=40

x = 135

Proof: 135-45-20 =40

135-45=90

90=30=60

60-20=40

step-by-step explanation:

a cube has 6 sides

the probability of getting 5 on the first cube is 1/6 since only one side of the cube has 5 on it.

there are 3 sides of the cube with even number on it [2,4,6]

therefore the probability of getting even number is 3/6

for both events to happen together, the probability would be

1/6 x 3/6 = 12/36

which simplifies to 1/12

the answer to question 1 is -8, 28.

step-by-step explanation: