Asia is about 3 times the size of antarctica together the 2 continents make up 2/5 of earth's land . what fraction of earth's land does antarctica make up?
2 answers
1/4 * 2/5 = 2/20 = 1/10
As = Asia's land
An = Antarctica's land
L = Earth's land
As = 3 An
As + An = 2 L / 5
3 An + An = 2 L / 5
4 An = 2 L / 5 Multiply both sides by 5
4 * 5 An = 2 L
20 An = 2 L Divide both sides by 20
An = 2 L / 20
An = L / 10
An = Antarctica's land
L = Earth's land
As = 3 An
As + An = 2 L / 5
3 An + An = 2 L / 5
4 An = 2 L / 5 Multiply both sides by 5
4 * 5 An = 2 L
20 An = 2 L Divide both sides by 20
An = 2 L / 20
An = L / 10