nave1008
05.12.2021 •
Mathematics
Three numbers have an average of 15. If two of the numbers are 10 and 12, then what is the other number? Answer with supporting work:
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Ответ:
Step-by-step explanation:
(12+10+x)/3=15
15*3=12+10+x
45-12-20=x
X=23
Ответ:
stew
Step-by-step explanation: