Two numbers have a sum of 40 and a difference of 14. What is the value of the smaller number?
Answer and explanation
Correct answer: C. 13
- Step 1: Let the two numbers be and with . Set up the system: and .
- Step 2: Subtract the second equation from the first: .
Answer
13.
Why not the others: '15' computes ; '17' computes ; '11' computes .
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