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Fiona the fish is swimming 2 9 km every 9 minutes. How many kilometers will she swim in 1 hour?

 Oct 15, 2014

Best Answer 

 #2
avatar+118723 
+5

or

2/9km in 9minutes

is

2/81km in 1 minute

is

2/81*60km in 1 hour

 

$${\frac{{\mathtt{2}}}{{\mathtt{81}}}}{\mathtt{\,\times\,}}{\mathtt{60}} = {\frac{{\mathtt{40}}}{{\mathtt{27}}}} = {\mathtt{1.481\: \!481\: \!481\: \!481\: \!481\: \!5}}$$     km/hour

 Oct 15, 2014
 #1
avatar+130511 
+5

OK, we can solve this with a proportion.......using 1 hr. = 60 minutes, we have

(2/9)/9 = d/60    where d is the distance Fiona can swim in an hour...so we have...

2/81 = d/60       cross-multiply

81d = 2*60       divide by 81 on both sides

d = (2*60)/81 = 40/29km = about 1.481km

 

 Oct 15, 2014
 #2
avatar+118723 
+5
Best Answer

or

2/9km in 9minutes

is

2/81km in 1 minute

is

2/81*60km in 1 hour

 

$${\frac{{\mathtt{2}}}{{\mathtt{81}}}}{\mathtt{\,\times\,}}{\mathtt{60}} = {\frac{{\mathtt{40}}}{{\mathtt{27}}}} = {\mathtt{1.481\: \!481\: \!481\: \!481\: \!481\: \!5}}$$     km/hour

Melody Oct 15, 2014

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