Peter has twice many stickers as Ali. Ali has 40 more stickers than Carlos. They have 300 stickers altogether. How many stickers does Peter have?

Let c be the number of stickers that Carlos has.

c + c + 40 + 2c + 40 = 300

4c = 220

c = 55

Carlos=a

Ali=a+40
Peter=2(a+40)
a+a+40+2a+80=300
4a+120=300
4a=180
a=45

That's not right. c does not equal 55.

Peter - 2 x c
Ali - Has c + another 40
Carlos - c

(2c) + (c + 40) + (c)
= 4c + 40 = 300
= 4c = 300-40
= 4c = 260
= 4c / 4 = 260 / 4
= 0 = 65
c = 65

Feel free to correct me if I'm wrong.

To find out how many stickers Peter has, we need to solve the given problem step by step.

Let's assign variables to the quantities mentioned in the problem:
Let the number of stickers Peter has be P.
Let the number of stickers Ali has be A.
Let the number of stickers Carlos has be C.

We are given the following information:
1. Peter has twice as many stickers as Ali:
P = 2A

2. Ali has 40 more stickers than Carlos:
A = C + 40

3. They have 300 stickers altogether:
P + A + C = 300

We can solve this system of equations to find the values of P, A, and C.

From equation (2), we can substitute the value of A in terms of C into equation (1) using substitution:
P = 2(C + 40)

Substituting the value of P in terms of C into equation (3):
2(C + 40) + (C + 40) + C = 300
2C + 80 + C + 40 + C = 300
4C + 120 = 300
4C = 300 - 120
4C = 180
C = 180 / 4
C = 45

Now that we know the value of C, we can substitute it back into equation (2) to find the value of A:
A = C + 40
A = 45 + 40
A = 85

Finally, we can substitute the values of A and C into equation (1) to find the value of P:
P = 2A
P = 2(85)
P = 170

Therefore, Peter has 170 stickers.

To summarize:
Peter has 170 stickers.
Ali has 85 stickers.
Carlos has 45 stickers.