3 years ago

How do I convert 36 cm/ second to mph

1 answer:

8 0

So
36 cm
convert each to each ohter

second to hour
60 second in minute
60 minute in 1 hour
60 times 60 second in 1 hour=3600 second in 1 hour
36cm/1sec
first try to convert the bottom number to hours by multiplying the whole thing by 3600/3600
12960000cm/1hour
convert cm to miles
1 mile =5280 feet
1 foot=12 inches
1 inch=2.54 cm
1 mile=5280 times 12 times 2.54 cm=160934.4cm in one mile
see how many miles there are in 12960000 cm so divide
12960000/160934.4=80.5297 miles
round to hundreths place
80.53 miles

answer: 80.53 miles per hour

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4 years ago

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The ratio of boys to girls in the classroom is 12:25 if there are 120boys how many girls are there

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Call x is the number of girls in the classroom.
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