Maddie has 3 times as much money as Tom. Tom has half of what Lucy has.
Lucy has 7 times as much as Billy. Billy has $1.50. How much money do they have altogether?
m = 3 t
t = L/2
L = 7 b = 7 * 1.50 = 10.5
so
t = 10.5/2 =5.25
m = 3 * 5.25 = 15.75
so in all 15.75 + 5.25 + 10.5 + 1.50
L = 7 * 1.50 = 10.50
T = 10.50/2 = ?
M = 3T
B = 1.50
Add them up.
To find out how much money Maddie, Tom, Lucy, and Billy have altogether, we need to calculate the total amount of money each person has and then add them up.
Let's start with Billy, who has $1.50.
Next, we find out how much money Lucy has. We know that Lucy has 7 times as much as Billy. So, we multiply Billy's money by 7:
$1.50 * 7 = $10.50.
Now we know that Lucy has $10.50.
Moving on to Tom, we know that Tom has half of what Lucy has. Therefore, we divide Lucy's money by 2:
$10.50 / 2 = $5.25.
Now we know that Tom has $5.25.
Finally, we're given that Maddie has 3 times as much money as Tom. So, we multiply Tom's money by 3:
$5.25 * 3 = $15.75.
Now we know that Maddie has $15.75.
To find the total amount of money they have altogether, we add up the amounts:
$1.50 (Billy) + $10.50 (Lucy) + $5.25 (Tom) + $15.75 (Maddie) = $33.00.
Therefore, they have a total of $33.00 altogether.