In 2009, a diabetic express company charged $39.95 for a vial of type A insulin and $30.49 for a vial of type B insulin. If a total of $1446.64 was collected for 40 vials of insulin, how many vials of each type were sold?

Question

In​ 2009, a diabetic express company charged ​$39.95 for a vial of type A insulin and ​$30.49 for a vial of type B insulin. If a total of ​$1446.64 was collected for 40 vials of​ insulin, how many vials of each type were​ sold?

Reiny · Answer

number of A vials ---- x number of B vials ---- 40-x solve for x: 39.95x + 30.49(20-x) = 1446.64

In​ 2009, a diabetic express company charged ​$39.95 for a vial of type A insulin and ​$30.49 for a vial of type B insulin. If a total of ​$1446.64 was collected for 40 vials of​ insulin, how many vials of each type were​ sold?

In 2009, a diabetic express company charged $39.95 for a vial of type A insulin and $30.49 for a vial of type B insulin. If a total of $1446.64 was collected for 40 vials of insulin, how many vials of each type were sold?