Lisa sold t-shirts at a festival and made a profit of $84 . She made $6 for each t-shirt she sold. Her total expenses were . How many t-shirts did she sell?

Question

Lisa sold t-shirts at a festival and made a profit of $84 . She made $6 for each t-shirt she sold. Her total expenses were . How many t-shirts did she sell?

(a) Write an equation that could be used to answer the question above. First, choose the appropriate form. Then, fill in the blanks with the numbers 84,6 , and 30. Let x represent the number of t-shirts.

(b) Solve the equation in part (a) to find the number of t-shirts.

Answer 1

6x = 84 - 30

6x = 54
x = 9

Lisa sold 9 t-shirts.