Carlos has $10 more than jeremy. jeremy has $5 more than michelle altogether they have $80. what part michelle have?

Let Michelle be x.

Jeremy has 5 more than Michelle = x + 5

Carlos has 10 more than Jeremy = (x + 5) + 10 = x + 15

Together they all have $80

x + (x+5) + (x+15) = 80

x + x + x + 5 + 15 = 80

3x + 20 = 80

3x = 80 - 20

3x = 60

x = 60/3 = 20

Michelle has x, which is = 20

Michelle has $20.