The frozen yogurt shack sells cones in size small,
, medium
and large
.
Consider small size as
, medium as
and large as
.
The total number of cones are
,
.
The
cones were sold totaling
.
.
The shack sold six more medium cones than small cones that day,
.
Cramer
s rule : Solutions of the system of equations
and
for
.
Co-efficient matrix
and
.
Caluculate the determinant of matrix
.


.
Find
.

.
Find
.

.
Find
.
.The solution of the system of equations are
,
and
.
,
and
.