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

add all the numbers and check the ones place.

the answer is 486. as the ones place is more than 4, the estimation will be the next 10 ie, 490