kmc3490 kmc3490

23-09-2016
Mathematics

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Lisa is 4 years older than three times her brother Sammy’s age.
Let s represent Sammy’s age and l represent Lisa's age.

Which expression represents Lisa’s age?
l = 3s
l = 3s + 4
l = 4s + 3
l = s + 4

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kash3yoshiii kash3yoshiii

23-09-2016

THE ANSWER IS: I=3s+4
because 4 years older would simply be addition while the question asks for the reader to multiply 3 times the brothers AGE which is represented by S

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