Ratios are used to show how two quantities compare.
The number of crocodiles is 15, when the number of hippos is 20
The given parameter is:
[tex]\mathbf{Hippos:Crocodiles = 4 : 3}[/tex]
From the question, we understand that the number of hippos is 20.
So, the ratio becomes
[tex]\mathbf{20 : Crocodiles = 4 : 3}[/tex]
Express ratio as a fraction
[tex]\mathbf{\frac{Crocodiles}{20} = \frac{3}{4}}[/tex]
Multiply both sides by 20
[tex]\mathbf{\frac{Crocodiles}{20} \times 20 = \frac{3}{4} \times 20}[/tex]
Simplify the left-hand side
[tex]\mathbf{Crocodiles= \frac{3}{4} \times 20}[/tex]
Multiply
[tex]\mathbf{Crocodiles= \frac{60}{4}}[/tex]
Divide
[tex]\mathbf{Crocodiles= 15}[/tex]
Hence, the number of crocodiles is 15
See attachment for the double number line that illustrates the number of crocodiles and hippos
Read more about ratios at:
https://brainly.com/question/1504221
