1. Is 2/12 = 5/28 a true proportion?
Step 1. Cross multiply.

2 x 28 = 12 x 56
56 = 672


Step 2. is the proportion true?

-----, because the cross products are not ----------.

The proportion -------- true, because 2/12 and 5/28 ------------ equivalent ratios.


Answer :

Answer:

[tex]\dfrac{2}{12}=\dfrac{5}{28}[/tex]

Cross multiply:

⇒ 2 x 28 = 5 x 12

⇒ 56 = 60

Is this proportion true?

No, because the cross products are not equal.

The proportion is not true, because 2/12 and 5/28 are not equivalent ratios.

Let's verify

  • 2/12=5/28

Cross multiplication

  • 2(28)=5(12)
  • 56≠60

No the proportion is false they are not equivalent