hannahbrown889
27.03.2020 •
Mathematics
When a number is increased by 11%, the result is 89. What is the original number to the nearest tenth?
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Ответ:
80.2
Step-by-step explanation:
Since the number is being increased by 11%, we can add 100% to it, and get 111%.
111%/100=1.11
1.11x=89
Then, divide by 1.11 on both sides
x=80.18018018...
Rounded to the nearest tenth,
x=80.2
Ответ: