Friday jeans were sold at 25 a pair and shirts at 18 each Receipts totaled 441. On Saturday the store priced both items at 20 sold exactly the same number of each item and had receipt of 420.?

Answer 1

Yes, it is.

If we denote with x the number of jeans that were sold, and with y the number of shirts that were sold, and create a system equations we will find:

25x + 18y = 441

20x + 20y = 420 Solve this system

4(25x + 18y) = 4(441)

-5(20x + 20y) = -5(420)

100x + 72y = 1764

-100x - 100y = - 2100

-28y = -336

y = 12 shirts were sold in each day

20x + 20(12) = 420

20x + 240 = 420

20x = 180

x = 9 pair jeans were sold in each day