Iam selling t-shirts and sweatshirts. the t-shirts cost $10 and sweatshirts cost $25. i started out with $50 in my box for change and now i have $1,400 in my box. i know that i have sold 5 more than 4 times as many t-shirts as sweatshirts. how many did i sell of each

Total money earned: 1400 - 50 = 1350$

Sweatshirts sold: x

T-shirts sold:  4x + 5

Earned by sweatshirts sold: 25x

Earned by T-shirts sold:  10(4x + 5)

Equation:

25x + 10(4x + 5) = 1350

25x + 40x + 50 = 1350

65x = 1350 - 50

65x = 1300

x = 20

T-shirts sold: 4 * 20 + 5 = 80 + 5 = 85

You sold 85 T-shirts and 20 sweatshirts