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270 american dollar and recevied 3000 pesos when he returned from mexico he had 100 pesos left. how many will he recevie when he exchanges these pesos for dollars
To solve this problem we can use simple proportion If 270$ -------------------------3000 pesos x $ ---------------------------100 pesos (x$ means that we dont know how much) Now we crossmultiplying to get proportion x*3000=270*100 Now we just to solve eq 3000x=27000 /:3000 x=27000:3000 x=9$ - its the result
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