Shawn and Nick are both selling t-shirts to raise money for their school trip. Shawn spent $250 on supplies and charges $35 per shirt. Nick spent $100 in supplies and charges $25 per shirt. How many shirts must be sold in order for Shawn to earn the same as Nick?

15

Step-by-step explanation:

Shawn: 35x - 250

Nick: 25x - 100

35x - 250 = 25x - 100

          10x = 150

              x = 15

so firstly, we need to isolate the y variables to be able to solve these inequalities. firstly, add 0.5x on both sides of the first inequality and subtract 1.5x on both sides of the second inequality:

now since the slope is positive for the first inequality, this means that the line going upwards belongs to the first inequality, and the line going downwards belongs to the second inequality.

next, since y ≥ in the first inequality, this means that the shaded region will be above the first inequality's line, thus shading regions a and b.

next, since y ≤ in the second inequality, this means that the shaded region is going to be below this line, thus shading regions a and c.

since both lines shade region a, this means that region a is the solution.

step-by-step explanation:

mark brainliest!