Consider the number of points required to drive the race car simulator is and to drive the snowboard simulator is
.
Marcus used points from his game card to drive the race car simulator and snowboard simulator four times each.
Hence, the equation is .
Cody used points from his game card to drive the race car simulator five times each and snowboard simulator three times each.
Hence, the equation is .
The system of equations are and
.
Cramers rule: Solutions of the system of equations
and
for
.
Co-efficient matrix .
Caluculate the determinant of matrix .
.
Find .
.
Find .
.
The solution of the system of equations are and
.
Number of points required to drive the race car simulator is .
Number of points required to drive the the snowboard simulator is .