Kira sold t-shirts at a festival and made a profit of $51. She made $3 for each t-shirt she sold. Her total expenses were $27. How many t-shirts did she sell?
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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 51, 3, and 27. Let x represent the number of t-shirts.
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Solve the equation in part (a) to find the number of t-shirts.
The appropriate form of the equation is:
Profit = Revenue - Expenses
So, the equation will be:
51 = 3x - 27
Solving the equation:
51 + 27 = 3x
78 = 3x
x = 78/3
x = 26
Therefore, Kira sold 26 t-shirts.
Scott ordered some books online for $5 each. He paid a total of $4 for shipping. The total cost of the purchase was $89. How many books did he buy?
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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 5,4 and 89. Let b represent the number of books.
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Solve the equation in part (a) to find the number of books.
The appropriate form of the equation is:
Total Cost = (Cost per book x Number of books) + Shipping
So, the equation will be:
89 = (5b) + 4
Solving the equation:
89 - 4 = 5b
85 = 5b
b = 85/5
b = 17
Therefore, Scott bought 17 books.