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:

the difference between a number and 5 is -2.

step-by-step explanation:

notice that the equation you are given has -2 (negative 2) on the right side, not 2. when you subtract 5 from a number n, you are finding the difference between the number and 5.

the difference between a number and 5 is -2.