Question

Convert each rate using dimensional analysis. Round to the nearest tenth, if necessary.

45 mi/h = ___ ft/s
a.

66

c.

26.4
b.

15.6

d.

19.2

Answer 1

@blurbendy

Answer 2

@itsonlycdeee

Answer 3

How many seconds are in a hour? 3600...so 1 unit conversion we'll be using is that...

How many feet are in a mile? 5280..so that is the 2nd unit conversion we'll be using...

\[\large \frac{ 45 \space \text{miles} }{ h } \times \frac{ 1 \space \text{Hour} }{ 3600 \space \text{Seconds} } \times \frac{ 5280 \space \text{Feet} }{ 1\space \text{Mile} }\]

Can you solve that?