pastelxre
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  • 15-01-2021
  • Mathematics
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Is the ratio 4.2:1.5 proportional to the ratio 12:5? Explain.

Respuesta :

SkiffMackinaw SkiffMackinaw
  • 15-01-2021

Answer:

No.

Step-by-step explanation:

We can set this proportion up as:

[tex]\frac{4.2}{1.5}=\frac{12}{5}[/tex]

For this to be true, cross-products need to be equal:

[tex]4.2(5)=12(1.5)[/tex],

However, we can see that this is not the case:

[tex]4.2\cdot 5 \neq 12 \cdot 1.5[/tex]

Therefore, these ratios are not proportional.

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