Answer:
5/9
Step-by-step explanation:
You put the total amount of blue marbles over the total number of marbles and you get 15/27, which simplifies to 5/9
Answer:-3x-21
Step-by-step explanation: use the distributive property
Answer:
25 because the 8 values must times with 7 and will get 56. when the ninth value added , let the ninth value as y , 56+y , the new mean is 9 . so it will be like this , 56+y over 9 times with 9
60%
Solve by creating a proportion
27/45 = x/100
Cross multiply to get 2700=45x
Divide 45 on both sides to get x=60
