Question

Marcus is selling t-shirts at the State Fair. He brings 200 shirts to sell. He has long sleeve and short sleeved T-shirts for sale. On the first day of the fair, he sells 1/2 of his long sleeved T-shirts and 1/3 of his short sleeved t-shirts for a total of 80 t-shirts sold. How much of each type of shirt did Marcus bring to the fair ?

Answer 1

Let x = number of long sleeve shirts
Let y = number of short sleeve shirts
x + y = 200
x/2 + y/3 = 80
Now solve this pair of simultaneous equations to find x and y.

Answer 2

how would I solve it ?

Answer 3

x + y = 200. Therefore
x = 200 - y ...................(1)
x/2 + y/3 = 80 .............(2)
Substitute the value for x in (1) into equation (2) and solve for y.