sam710
28.10.2020 •
Mathematics
Kayla began a science experiment with 18 grams of an unknown solid. During the experiment, the change in the mass of the solid was – 7 grams. What was the mass of the solid at the end of the experiment? To solve the problem, Edna subtracted 18–( – 7) and came up with an answer of 25 grams. Is Edna correct? Why or why not?
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Ответ:
No. Enda should have added 18+ (-7) because she needed to add the initial mass and the change in mass.
Step-by-step explanation:
Ответ:
1e+49
Step-by-step explanation:
All you need to do is input it into the calculator because I really can't do it in my head and you get 1e+49