Carlos has $24, which is 1 1/3 as much money as Luisa has. How much money does Luisa have?

Luisa has $18

Step-by-step explanation:

Let us solve the question

∵ Carlos has $24

∵ Carlos has 1  as much money as Luisa has

→ Let Luisa has x dollars

∵ Luisa has x dollars

∴ Carlos money = 1 × x

∴ Carlos money = 1 x

→ Change the mixed number to an improper fraction

∵ 1 = =

∴ Carlos money = x

→ Substitute the Carlos money by 24

∵ 24 = x

→ Multiply both sides by 3

∵ 24 × 3 = 4x

∴ 72 = 4x

→ Divide both sides by 4

∴ 18 = x

∴ Luisa has $18