Answer:
With both ratio= 3
The ratio are equivalent
Step-by-step explanation:
Ratio= number of balloons/ number of centerpieces
For
18 balloons for every 6 centerpieces
Ratio= 18/6
Ratio= 3
For
27 balloons for every 9 centerpieces
Ratio= 27/9
Ratio= 3
Value of each ratio= 3 and 3
3=3
So they are eqtand equivalent
