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Radda [10]
3 years ago
12

HELP pls again.....​

Mathematics
2 answers:
True [87]3 years ago
7 0

Answer:

The choice C 31

Step-by-step explanation:

\frac{21}{x}  =  \frac{105}{155}  \\ 105x = 21 \times 155 \\ 105x = 3255 \\  \\ x =  \frac{3255}{105}  \\   \\ x = 31

pogonyaev3 years ago
5 0

Answer:

105× X =21×155

105x= 3255

x=3255/105

x=31

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