Answer: 81
Step-by-step explanation: Divide the number of blue marbles by the number in the ratio of the number of blue marbles. 99/11=9. Then multiply that by 9 to get the number of red marbles. 9*9=81.
Answer:
2282 divided by 3over7
1215
5×3,15×3,45×3,135×3,405×3=1215
y=6x+5
Step-by-step explanation:
I am not sure if this is the answer but it's worth a try...
5
in similar figures the side lengths must be proportional:
4/8 = x/10 cross multiply fractions
40 = 8x divide both sides by 8
5 = x
