Number Increased Percent

The number z increased by 20, which is 40% larger than the number z. Determine the number z.

Final Answer:

z =  50

Step-by-step explanation:


z+20 = 1.40 z

z+20 = 1.40·z

0.4z = 20


z = 20/0.4 = 50

z = 50

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