Question

in a certain week a businessman bought 36 bicycles and 32 radios for total of kshs 227280. In the following week he bought 28 bicycles and 24 radios for a total of Kshs 174960. Using matrix method, find the price of each bicycles and each radio that he bought

Answer 1

You have AX = B
(36 32)(x) = (227280)
(28 24)(y)....(174960)
now just solve for X = A^{^-1}B

Answer 2

Bicycle 200 radio 250

Answer 3

Bicycle 4500
Radio 2040