Question

The sum of two numbers is 144 and their difference is 73. Find the smallest number. Use two exact decimals.

Answer 1

30.5

Explanation:

Let L = the larger number

Let S = the smaller number

L + S = 144

L - S = 73

L = S + 73

S + S + 73 = 144

2S = 71

S = 30.5