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sammy has $3.20.he has enough money to pay for 2/9 of the cost of a book. how much more money dose he need

 Nov 22, 2014

Best Answer 

 #2
avatar+128079 
+5

Each 9th of the book's price must be $1.60

And he needs 7 more

So.....7 x 1.60 = $11.20

 

 Nov 22, 2014
 #1
avatar+118587 
+5

$3.20 is 2/9  so

$3.20/2=$1.60 is 1/9 so

$1.60*9=$14.40 is 9/9

Oh I didn't need to know that :)

 

I have 2/9 so I need 7/9 then I will have the whole lot

$3.20/2=$1.60 is 1/9 so

$1.60*7=$11.20

He needs another $11.20

 

OR I could have said

$14.40-$3.20=$11.20

 Nov 22, 2014
 #2
avatar+128079 
+5
Best Answer

Each 9th of the book's price must be $1.60

And he needs 7 more

So.....7 x 1.60 = $11.20

 

CPhill Nov 22, 2014

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