asra44
23.07.2019 •
Mathematics
Mary is converting 30 yards per hour into feet per hour. what conversion should she use?
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Ответ:
Hope this helps
Ответ:
m + f = 15 ---> 3m + 3f = 45
3m + 5f = 51
3m + 3f = 45
3m + 5f = 51
-2f = -6
f = 3
m + f = 15
m = 15 - 3
m = 12
So the correct answer is 12.