Answer:
Tess = 71 y/o
Nina = 63 y/o
Katy = 55 y/o
Step-by-step explanation:
First step: divide their age equally.
189÷3 = 63 years old / person
Second step: calculate the different between their age.
Tess>Nina>Katy
Different between:
Katy and Tess
= 16 years
Nina and Katy
= 8 years
Tess and Nina
= 16–8
= 8 years
Third step: Calculate their age.
Tess = 63+8
= 71 years old (because she is 8 years older than Nina and 16 years older than Katy)
Nina = 63 years old ( it doesn't change because she is in the middle)
Katy = 63–8
= 55 years old (because she is 8 years younger than Nina and 16 years younger than Tess)
To confirm, you can sum their age and check the age differences like what have been told in the question either it is correct or not.
71+63+55
= 189 years
The property of a(b+(-b))=(b+(-b))a is called as Commutative Property of Multiplication.
The Commutative Property in mathematics is a rule that allows interchange the order of terms or factors without any change in the end result.
In multiplication, we can interchange the factors without affecting the end result of multiplication. For example, 2 x 3 = 3 x 2 = 6
In addition, we can interchange the terms without affecting the summation result. For example, 2+3 = 3+2 = 5
But Commutative Property does not apply to subtraction or division.
For example, 2-3 != 3-2
or, 2/3 != 3/2
Hence the answer to the question is Commutative Property of Multiplication.
To know more about "Commutative" click here
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The last option becuz math hero told me
The answer is false it’s facts basically