Answer:
There will be 4 blue marbles
Step-by-step explanation:
Yellow to blue marbles is in a ratio of:
5:10
the representative sample is:
2:x
simplee cross multiplication can be aplied
5x = 2*10
5x = 20
divide both sides by 5
x = 4
there should be four blue marbles
10. This is because 3 evenly goes into 30 without a remaining fraction
You didnt give us the numbers but it should be 4 and -4
Depends are you finding x or other variables
Answer: c
Step-by-step explanation:
