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Mary is 4 years older than Sue. If the sum of their ages is 16. How would you set up the equations?

Mary is 4 years older than Sue. If the sum of their ages is 16. How would you set-example-1
User Neiman
by
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1 Answer

2 votes

Answer:

A. x=y-4, x+y=16

C. x=y-4, x+y=16

Step-by-step explanation:

• Let Sue's age = x

Mary is 4 years older than Sue, therefore:

• Mary's age, y = x+4


\begin{gathered} y=x+4 \\ \implies x=y-4 \end{gathered}

Next, the sum of their ages is 16. This gives:


x+y=16

Therefore, the equation is:


\begin{gathered} x=y-4 \\ x+y=16 \end{gathered}

The correct choices are A and C.

User Cruz Nunez
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