Charles and Lisa were having a watermelon eating contest. They ate twelve slices of watermelon between the two of them. Lisa ate two times as many slices of watermelon than Charles. How many slices of watermelon did Lisa eat?

8 slices

Step-by-step explanation:

Let the watermelon eaten by Charles be A and Lisa be B

They ate 12 slices of watermelon between them

That’s

A + B = 12

Also, Lisa ate 2 times as Charles

that’s

B = 2A

We no have two equations

1. A + B = 12

2. B = 2A

Substitute 2A for B into the first equation

A + B = 12

A + 2A = 12

3A = 12

Divide both sides by 3

3A/3 = 12/3

A = 4

Charles ate 4

Recall Lisa B ate twice as Charles A

B = 2A

B = 2 x 4

B = 8

Lisa ate 8 slices of watermelon

lockers 1, 4, 9, 16, 25, 40, and 49 are open

i ran through it by the other answer is wrong

its a trick question

step-by-step explanation:

dogs love water, just turn on the hose and it will run in circles chasing the water all day : )