joselina joselina

06-06-2017
Biology

contestada

PLEASE SOMEONE HELP ME AND EXPLAIN. I DO NOT UNDERSTAND HOW THY RECEIVED THE DIFFERENCE OF 00:07:40 WHEN THEY SUBTRACTED 00:9:20 FROM 00:17:00.

Respuesta :

taylorannehoppe taylorannehoppe

06-06-2017

00:07:40+00:09:20=00:17:00

00:00:40+00:00:20=00:01:00

00:01:00+00:07:00+00:09:00
=00:17:00

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