Two numbers

The sum of two numbers equals 840. The first number makes up 40% of the second number. Specify both numbers.

Final Answer:

x =  240
y =  600

Step-by-step explanation:


x+y=840
x = 0.40 y

x+y=840
x = 0.40·y

x+y = 840
x-0.4y = 0

Row 2 - Row 1 → Row 2
x+y = 840
-1.4y = -840


y = -840/-1.4 = 600
x = 840-y = 840-600 = 240

x = 240
y = 600

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