Question

Of the last 20 balloons sold at a party store, 5 were pink. Considering this data, how many of the next 12 balloons sold would you expect to be pink? (For your response, give me your proportion set up and your x=answer. This is an example of what it would look like --> 5/6=x/18 --> x = 15) *

Answer 1

Answer: 3 balloons

Explanation:

The ratio would be pink balloons to total balloons (aka pink/total), so 5 to 20 (aka 5/20). This simplifies to 1/4. If the new total is 12, and x represents pin balloons, then you can do 1/4=x/12. By cross multiplying, you get 12=4x. Divide both sides by 4 and x would equal 3. Therefore, the party store should expect to sell 3 pink balloons.