X + 2 = 3y MATHEMATICAL CONNECTIONS a. Write an equation that represents the sum of the angle measures of the triangle,
The equation is
= 180
b. Use your equation and the equation shown to find the values of x and v.

The students at jefferson middle school are raising money for a charity by selling t-shirts and hats. the number of t-shirts sold was 3 times the number of hats. the profit was $5 for each t-shirt sold and $2.50 for each hat sold. the students raised $840 for the charity. they used the system below to analyze their success and found the solution to be (144, 48). 5x+2.50y=840 x=3y how much did they earn from t-shirt sales?