Answer:
They will need to sell 16 T-shirts to reach their goal
Step-by-step explanation:
Let us solve the question
∵ The school store is selling notebooks for $1.50 and T-shirts for $10.00
∴ The price of each notebook = 1.50 dollars
∴ The price of each T-shirt = 10.00 dollars
∵ They have sold 60 notebooks
∴ The number of notebooks sold = 60
∵ They have a goal of raising $250
∴ The total money they want to earn = 250 dollars
Assume that they will sell x T-shirt to reach their goal
Multiply the no. of notebooks by the price of each and the no. of T-shirts by the price of each, then add the two products and equate the sum by 250
∵ 1.50 (60) + 10.00 (x) = 250
∴ 90 + 10x = 250
→ Subtract 90 from both sides
∵ 90 - 90 + 10x = 250 - 90
∴ 10x = 160
→ Divide both sides by 10 to find x
∴ x = 16
∴ The number of T-shirts = 16
∴ They will need to sell 16 T-shirts to reach their goal
