iyeshaik
29.03.2020 •
Mathematics
When 70% of a number is added to the number, the result is 221. What is the number?
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Ответ:
130
Step-by-step explanation:
so 0.7x + x = 221
so 1.7x = 221
divide both sides by 1.7 to get
x = 130
Ответ:
the answer should be x=0