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20-01-2022
Mathematics

contestada

Maria's brother, Joe, is three
years less than twice Maria's
age. Joe is 19 years old. How
old is Maria?

Respuesta :

23saaskesa 23saaskesa

20-01-2022

Answer:

Maria is 15

Step-by-step explanation:

J = 2M-3

J+M = 24 substitute for J:

2M-3+M = 24 regroup

2M+M-3 = 24

3M = 27

M = 9

and Joe = 2M-3 = 2(9)-3 = 18-3 = 15

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