Answer:
Eagle - 0.83%
Sparrow - 4%
Step-by-step explanation:
1. On average, the weight of the eagle is 1.68 kg. Its head weighs 14 g.
Then
1.68 kg = 1,680 g - 100%
14 g - x%
Write a proportion:
[tex]\dfrac{1,680}{14}=\dfrac{100}{x}[/tex]
Cross multiply:
[tex]1,680x=1,400\\ \\x=\dfrac{1,400}{1,680}=\dfrac{70}{84}=\dfrac{10}{12}=\dfrac{5}{6}\approx 0.83\%[/tex]
2. On average, the weight of the sparrow is 25 g. Its head weighs 1 g.
Then
25 g - 100%
1 g - x%
Write a proportion:
[tex]\dfrac{25}{1}=\dfrac{100}{x}[/tex]
Cross multiply:
[tex]25x=100\\ \\x=\dfrac{100}{25}=4\%[/tex]
