mp515
10.09.2020 •
Mathematics
Seven 5th graders and eleven 6th graders enter a baking competition. What is the ratio of 6th graders to 5th graders?
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Ответ:
s = 10 +2h
3h = 10 + 2h
h = 10
s = 3 × 10
s = 30
sam is 30 years old, and Harry is 10 years old