91.7k views
5 votes
Set up proportion and solve:

3 packages of blueberries cost $9. How many packages can you buy for $18?

User Kalhartt
by
2.9k points

2 Answers

2 votes

Answer:

6

Explanation:

3/9=x/18

3/9=1/3

so 1/3=x/18

cross product

3*x=1*18

3x=18

x=18/3

x=6

User Dasheddot
by
3.4k points
7 votes

Answer:

3/9=3

3*18=54

you can buy 54 packages

Explanation:

User NKandel
by
3.7k points