Two shopkeepers, Juma and Wan bought some items from a wholesaler. Juma bought 18 loaves of bread, 40 packets of milk and 5 bars of soap while Wan bought 15 loaves of bread, 30 packets of milk and 6 bars of soap. The price of a loaf of bread, a packet of milk and a bar of soap were sh 45, sh 50 and sh 150 respectively.
a.
(I) the number of items bought by Juma and Wan using a 2 * 3 matrix.
18 40 5
15 30 6
(ii) the price of the items bought a 3 * 1 matrix
45
50
150
(b) Use the matrices in (a) above to determine the total expenditure incurred by each person and hence the difference in their expenditure
18 40 5
15 30 6
*
45
50
150
= [3560, 3075]
1 answer
looks good to me
1 answer