The total

The total length of a road trip was 18.9 hours. If highway signs are posted every 0.7 hours, including one at the end of the road trip, how many highway signs will there be on the road trip?

Correct answer:

n =  28

Step-by-step explanation:

a=18.9 h t=0.7 h  n=a/t+1=18.9/0.7+1=28

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