Jack rented 2 times as many DVD's as Paloma last month. Paloma tented 4 fewer than Greg, but 4 more than grace. Greg rented 9 DVD's. How many DVD's did each person rent?

Answer: Jack rented 10 DVDs.

Paloma rented 5 DVDs.

Grace rented 1 Dvd

Step-by-step explanation:

Let x represent the number of DVD's that Jack rented.

Let y represent the number of DVD's that Paloma rented.

Let z represent the number of DVD's that Grace rented.

Jack rented 2 times as many DVD's as Paloma last month. This means that

x = 2y

Paloma rented 4 more than grace. This means that

z = y - 4

Paloma rented 4 fewer than Greg. If

Greg rented 9 DVD's, it means that

y = 9 - 4 = 5

x = 2y = 2 * 5

x = 10

z = y - 4 = 5 - 4

z = 1