Two numbers

The sum of the two numbers is 48. 12.5% of the first number equals exactly 4. Find both of these numbers.

Final Answer:

a =  32
b =  16

Step-by-step explanation:


a+b=48
12.5/100·a=4

a+b = 48
12.5a = 400

Pivot: Row 1 ↔ Row 2
12.5a = 400
a+b = 48

Row 2 - 1/12.5 · Row 1 → Row 2
12.5a = 400
b = 16


b = 16/1 = 16
a = 400/12.5 = 32

a = 32
b = 16

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