kenz2797
27.11.2019 •
Mathematics
Vincent’s copier can print in 7 hours. chris’s printer can do the same in 13 hours. how long would it take to do the job using both copiers
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Ответ:
Step-by-step explanation:
1/7+1/13=1/t
multiply both sides by 7*13*t
13t+7t=7*13
21t=91
t=91/19
it will take 4 hours and 8 minutes
Ответ:
4,096
Step-by-step explanation:
8^4 =
8x8x8x8
which equals 4,096