lerigercody4697 lerigercody4697

28-02-2019
Mathematics

contestada

A bag contains 18 coins consisting of quarters and dimes. The total value of the coins is 2.85$. Which system of equations can be used to determine the number of quarters , q , and the number of dimes , d , in the bag

Respuesta :

lastbenchstudent lastbenchstudent

02-03-2019

total coins = 18

so

q + d = 18

total cents in all quarters = 25q

total cents in all dimes = 10d

and total cents = 2.85×100 =285

so 2nd equation is

25q + 10d = 285

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