Respuesta :
So she has $10 worth of dimes because 100*.10 = $10 so you subtract 10 from 14.05 which is 4.05. There is 4 quarters in a dollar. So 4*4 is 16.
She has 16 quarters
100 dimes
1 nickel
She has 16 quarters
100 dimes
1 nickel
Answer:
Let
x
be the number of quarters, and
y
be the number of dimes.
x
+
y
=
100
0.25
x
+
0.10
y
=
14.05
Solve by substitution:
y
=
100
−
x
∴
0.25x + 0.10(100 - x) = 14.05#
0.25
x
+
10
−
0.10
x
=
14.05
0.15
x
+
10
=
14.05
0.15
x
=
4.05
x
=
27
Solve for
y
now:
y
+
27
=
100
y
=
100
−
27
y
=
73
Hence, Marcy has
27
quarters and
73
dimes.
Hopefully this helps!
Step-by-step explanation: