Asked by kymy
Jill, Meg, and Beth are sisters. Jill is 2 years younger than Meg. Beth is half as old as Meg. Use the same variable to write three algebraic expressions based on this situation. Tell what the variable represents and what each expression represents.
THANK YOU!
THANK YOU!
Answers
Answered by
Reiny
Meg's age --- x
Jill's age ----- x-2
Beth's age --- x/2 or (1/2)x
Of course we could have started by defining:
Beth's age --- y
Meg's age --- 2y
Jill's age -----2y - 2
or , starting with
Jill's age ----- z
Meg's age ---- z+2
Beth's age ---- (z+2)/2 or (1/2)(z+2)
Jill's age ----- x-2
Beth's age --- x/2 or (1/2)x
Of course we could have started by defining:
Beth's age --- y
Meg's age --- 2y
Jill's age -----2y - 2
or , starting with
Jill's age ----- z
Meg's age ---- z+2
Beth's age ---- (z+2)/2 or (1/2)(z+2)
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