Answer:
4.5
Step-by-step explanation:
It depends on the total number of marbles in the bag and the number of yellow marbles in the bag
It is an equilateral triangle, so the angles need to add up to 60 degrees each
5y = 60
5y/5= 60/5
y = 12
2x - 4 = 60
2x - 4 (+4) = 60 (+4)
2x = 64
2x/2= 64/2
x = 32
hope this helps (this is assuming it is a equilateral triangle)
To solve this, I will use proportions:
The defected ones have a proportion of 1:400
So just make this proportion:
Once you solve it, you get a value of
5