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GREYUIT [131]
3 years ago
12

How many solutions 4(x-5)=3x+7

Mathematics
1 answer:
ohaa [14]3 years ago
5 0
4(x-5)=3x+7 \\ \\ 4x - 20 = 3x + 7 \\ \\ 4x = 3x + 7 + 20 \\ \\ 4x = 3x + 27 \\ \\ 4x - 3x = 27 \\ \\ x = 27 \\ \\

The final result is: x = 27
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10. On one night, a group of 9 rats carried away 45 kg of food. What is the reduced ratio of rats to food weight
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Ratio of the number of rats and food weight = \frac{\text{Number of rats}}{\text{Weight of food carried by the rats}}

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                                                                          = \frac{1\times 9}{5\times 9}

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