3 years ago

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Mathematics

1 answer:

Mazyrski [523]3 years ago

7 0

Answer:

Paul is the youngest at 17 years old. Fiona is 20 years old, Sara is 23 years old

Step-by-step explanation:

Assign variables to the ages.

S = sara's age

F = Fiona's age

P = Paul's age.

S + F + P = 60

S = 3 + F

P = F - 3

(3 + F) + F + (F - 3) = 60

3 + 3F - 3 = 60

3F = 60

F = 20

S = 23

P = 17

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