SOLUTION: Use two unit multipliers to convert 144 square feet to square miles. Round any decimal answer to two places. Answer key gives 5.17 x 10to the negative 6th power miles squared,

Algebra ->  Conversion and Units of Measurement -> SOLUTION: Use two unit multipliers to convert 144 square feet to square miles. Round any decimal answer to two places. Answer key gives 5.17 x 10to the negative 6th power miles squared,       Log On


   



Question 625747: Use two unit multipliers to convert 144 square feet to square miles. Round any decimal answer to two places.
Answer key gives 5.17 x 10to the negative 6th power miles squared, but I don't understand how the answer was derived.
Thanks for your help.

Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
1 mile: 5280 feet

1 mile * 1 mile: 1 mile * 5280 feet

1 mile * 1 mile: 5280 feet * 5280 feet

1 square mile: 27878400 square feet

27878400 square feet: 1 square mile

27878400/27878400 square feet: 1/27878400 square mile

1 square foot: 1/27878400 square miles

1 square foot: 0.00000003587007 square miles

144*1 square foot: 144*0.00000003587007 square miles

144 square feet: 0.00000516529009 square miles

144 square feet: 5.16529009 * 10^(-6) square miles

144 square feet: 5.17 * 10^(-6) square miles
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