Sophia is 12 years old. Her Uncle Reynald tells her that if she adds 5 to her age, multiplies the sum by 3, and then subtracts 4
from the product, she will find his age. She tells him that his age equals the expression 12 + 5 × 3 − 4 .
Is Sophia correct?
1 answer:
No, according to PEMDAS, that expression would be the same as saying 12+(5*3)-4, not the correct expression: (12+5)*3-4.
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