
Pls help solve. Thanks
Pls help solve. Thanks
Cup [3][3] —–> $6 each
Plate [3][3][3] —> $9 each
Let u be the number of cups sold and it is also the number of plates sold.
6u + 9u = 2850
15u = 2850 => u = 190
Total sold = 190 + 190 = 380
4 parts out of 7 parts of total items sold –> 380
3 parts unsold = (380/4) x 3 = 285
Hence total number of plates and cups unsold is 285