ronnie7898
21.06.2020 •
Chemistry
A temperature change in a reaction indicates
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Ответ:
Ответ:
Distance Tim travels= T*90
Distance Dora travels=T*75 + 75 (<as already started)
for him to have caught up His distance must equal hers so:
90T=75T + 75 (now minus 75T)
15T=75 (now divide by 15)
T=5 :)
So five hourse, hope this helped :)