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9. A mailman can sort out 345 letters in 3 hours. If the number of
letters varies directly as the number of working hours, how many letters can he sort it 7 hours? with solution pls​


Sagot :

Answer:

805

345 add 345 = 690 in 6 hours so they have remaining 1 hour so you need to divide 354 in 3 is equal to 115 then add to 690 is equal to 805 for 7 hours.

Step-by-step explanation: