Louis has three more quarters than dimes in his pocket, for a total of $1.80. Which equation could be used to determine the number of dimes, x, in his pocket?

Relax

Respuesta :

d=# of dimes q=# of quarters
q=d+3
0.25q+0.10d=1.80
Substitute 0.25d+0.75+0.10d=1.80
Combine like terms 0.35d=1.05
Divide d=3
Substitute q=6
Answer 3 Dimes