Martin is x years old.Jennifer is 3 years younger than Martin.Connor is twice as old as Martin.a) Write an expression for Jennifer’s age _______________ (1)b) Write an expression for the sum of the three ages ______________________
Question
Martin is x years old.Jennifer is 3 years younger than Martin.Connor is twice as old as Martin.a) Write an expression for Jennifer’s age _______________ (1)b) Write an expression for the sum of the three ages ______________________
Solution
a) Jennifer's age can be expressed as x - 3. This is because she is 3 years younger than Martin.
b) The sum of the three ages can be expressed as x + (x - 3) + 2x. This is because Martin's age is x, Jennifer's age is x - 3, and Connor's age is twice Martin's age, which is 2x.
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