William bought 5 rulers for $7.50. If r represents the cost of one ruler, which equation represents this situation?
1 answer:
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To solve for 
You first need to find a common denominator.
To do so, you need to make both denominators 10 by multiplying the top and bottom of
by 5
=
Reduce by dividing both the top and bottom by 2
Your answer is
To do so, you need to make both denominators 10 by multiplying the top and bottom of
Your answer is