laladance123
11.05.2021 •
Mathematics
Please only answer if you are studing or know trans for math.(not very easy)
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Ответ:
Ответ:
1/4 + 1/7 = 1/x rate
Common denominator = 28x
7x + 4x = 28
11x = 28
x = 28/11
x = 2.54 hours
x = 2hrs 32mins 44secs.
Hope this helps.