Question

Sam is selling T-shirts to raise money for School research project.

The supplier charges a $210 design fee plus $3 per T-shirt. Sam plans to sell the T-shirts for $10 each.



How many T-shirts does Sam need to sell in order to break even?
Equation :y= 3x + 210
y = 10x












. Sam needs to sell ______
T- shirts to break even.

Answer 1

30

Explanation:

Equation y = 3x + 210

if y = 10x

10x = 3x + 210

or, 10x - 3x = 3x + 210 - 3x

or, 7x = 210

or, x = 210 ÷ 7

or, x = 30