97.3k views
5 votes
Which cost the least per kilogram. $4 for 1.5, $5 for 2.0, $7 for 2.5, $8 for 3.5?

User Mbelsky
by
6.9k points

2 Answers

7 votes
7 or 2.5 is the answer to the problem
User Jacajack
by
6.1k points
3 votes
Divide each cost by their quantity to get the cost per kilogram and then compare.

4÷1.5
5÷2.0
7÷2.5
8÷3.5
User AlanSTACK
by
5.9k points
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