Asked by john
Sara is six years older than Ben. Five years ago, Sara was one and a half times ad old ad Ben. What is Sara's current age?
How did the teacher come up with Sara's current age of 23? I have no idea
How did the teacher come up with Sara's current age of 23? I have no idea
Answers
Answered by
Steve
s = b+6
s-5 = 3/2 (b-5)
so,
s-5 = 3/2(s-6-5)
s-5 = 3/2 (s-11)
2s-10 = 3s-33
s = 23
s-5 = 3/2 (b-5)
so,
s-5 = 3/2(s-6-5)
s-5 = 3/2 (s-11)
2s-10 = 3s-33
s = 23
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