Answer:
Ratio = 1 : 4
Step-by-step explanation:
Total marbles = 10
Given 1/5 is red, that is 1/5 of the total marbles are red

Therefore , 10 - 2 = 8 marbles are blue.
Ratio of red marbles to blue marbles

Answer:
1537500
Step-by-step explanation:
it should be that. all you do is multiply 615000 by 2.5
Where is the diagram?
Can't be solved without it.
Answer:
Step-by-step explanation:
Answer:
half a sphere is called a hemisphere