mak92
18.11.2019 •
Mathematics
Una has a collection of 28 insects. 1/4 are butterflies, 2/7 are moths, and the rest are beetles.
how many insects are beetles?
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Ответ:
13 beetles
Step-by-step explanation:
Total insects - 28
Butterflies - 7
Moths - 8
4 =
8 =
Beetles - 13
7 + 8 + x = 28
15 + x = 28
15 - 15 + x = 28 - 15
x = 13
Ответ: