mprjug6
23.06.2019 •
Mathematics
Jenny washed dishes 4 times as many as her brother he washed dishes 8 times jenny said she could multiply 3 tones 8 to find how many more times she washed dishes than her brother is she correct
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Ответ:
A = 53 m²
Step-by-step explanation:
A = A1 + A2
= 4m×5m + 3m×(3m + 5m + 3m)
= 20m² + 3m×11m
= 20m² + 33m²
= 53 m²