SOLUTION: multiple choice use the formula d=rt to find the following t for d= 137 1/2 km and r= 55 km/h A. 192 1/2 h B. 82 1/2 h C. 2 h D. 2 1/2 h

Question 551491: multiple choice
use the formula d=rt to find the following
t for d= 137 1/2 km and r= 55 km/h
A. 192 1/2 h
B. 82 1/2 h
C. 2 h
D. 2 1/2 h
Answer by TutorDelphia(193) (Show Source): You can put this solution on YOUR website!
subbing in we get
137 1/2 km=55 km/h * t
divide both sides by 55km/h
137 1/2 km/55 km/h=t
Now we could simply put 137 1/2 / 55 in on a calculator but let's say you aren't allowed to use one. Let's use estimation. 137 1/2 divided by 55 should give me more than 2 since 110/55=2 It should give me less than three since 165/55=3. 137 is always between those, so I'm expecting my answer to be 2 1/2 h
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