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alexira [117]
3 years ago
8

Write an equivalent expression for 7(3 – X) + 15x

Mathematics
2 answers:
Vinvika [58]3 years ago
7 0

Answer:

-7x+15x+21

Step-by-step explanation:

Ne4ueva [31]3 years ago
5 0

Answer:

21+8x

Step-by-step explanation:

7(3 – X) + 15x

21-7x+15x

21(-7x+15x)

21+8x

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Method\ \#2\\\\p\%=\frac{p}{100}\to40\%=\frac{40}{100}=0.40=0.4\\\\x-the\ number\\\\40\%\ of\ the\ number\ is\ 31:\\\\0.4x=31\ \ \ \ |divide\ both\ sides\ by\ 0.4\\\boxed{x=77.5}
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3 years ago
Which table shows a proportional relationship between x and y
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Answer:

The answer is B (1 , 3) , (2 , 6) , (4 , 12) , (5 , 15)

Step-by-step explanation:

∵ X : 1 , 2 , 4 , 5

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∴ Answer B is in proportional relationship

4 0
3 years ago
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Step-by-step explanation:

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