To calculate: the total of stamps in the collection and the number of stamps from U.S. in the collection. Given information: There are 15 stamps from Canada and they are 311 of the total collection.

Question

To calculate: the total of stamps in the collection and the number of stamps from U.S. in the collection.  Given information:  There are 15 stamps from Canada and they are 311 of the total collection.

Piosellisf · Accepted Answer

Calculation:  Let, x be the total number of stamps.  The number of stamps from Canada are 15.  The number of stamps from U.S. are (x−15).  Since, the Canada stickers made up 311 of the total collection.  The total number of stamps in the collection can be calculate as,  15311=x1  311×x=15 [cross multiply]  3x11×11=15×11 [multiply each side by 11]  3x=55  3x÷3=165÷3 [divide each side by 3]  x=55  The number of stamps from U.S. in the collection can be calculated as,  (x−15)=(55−15)  (x−15)=40  Therefore,  The total number of stamps in the collection are 55 and the number of stamps from U.S. in the collection are 40.

vrangett · Accepted Answer

Step 1  Given: There are 15 stamps from Canada and they are 311 of the total collection  15311=x1  Divide 15 by 311 by multiplying 15 by the reciprocal of 311  15×(113)=x1  Express 15×(113) as a single fraction  15×113=x1  Multiply 15 and 11 to get 165.  1653=x1  Divide 165 by 3 to get 55.  55=x1  Anything divided by one gives itself.  55=x  Swap sides so that all variable terms are on the left hand side.  x=55  Answer: total number of stamps in the collection are 55

To calculate: the total of stamps in the collection and

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