Problemas
Jason has some quarters and dimes. He has 22 coins worth a total of 3.55 . How many of each type of coin does he have? Number of quarters: square Number of dimes: square
Roztwór
Maximiliano
maestro · Tutor durante 5 años
4.2
(247 Votos)
Respuesta
Let's denote the number of quarters as
and the number of dimes as
. We are given two equations based on the problem statement:1. The total number of coins is 22:
2. The total value of the coins is
25q + 10d = 355
d
d = 22 - q
d
q
25q + 10(22 - q) = 355
25q + 220 - 10q = 355
15q = 355 - 220
15q = 135
q = \frac{135}{15}
q = 9
q
d = 22 - q
d = 22 - 9
d = 13
\boxed{9}
\boxed{13}$