© The Mailbox ® Name Using variables Date Cupcakes 'n' More Complete each equation and solve for the variable. Then write the answer on the line. There are three children in the Eaton family. Their combined ages equal 35 years. Ima is 12 years old, and her sister, Missy, is nine. How old is their brother, Ben? n = _______________ 12 + 9 + n = _____ The bakery case holds 750 cupcakes. There are 50 cupcakes in each row. How many rows are there? _____ = 50n The Eatons baked twice as many cupcakes as cookies. They made 60 cupcakes and cookies in all. How many cupcakes did they bake? How many cookies? n + 2n = _____ Missy frosted 17 cupcakes before lunch. By 4:00 PM, she had frosted several times that many cupcakes. Missy frosted 68 cupcakes in all. How many cupcakes did she frost after lunch? 17 + n = _____ The Eatons baked a total of 528 cookies. There were two dozen cookies in each batch. How many batches did they bake? _____ x n = 528 The Eatons had a three- day cupcake sale. They sold twice as many cupcakes on Tuesday as they sold on Monday and three times as many on Wednesday as on Monday. They sold 900 cupcakes in all. How many cupcakes did they sell on Monday? n + 2n + 3n = _____ It took Ima two hours to make an apple pie. She spent 25 minutes making the filling and 20 minutes making the crust. How long did the pie bake? 25 + 20 + n = _____ The Eatons sell tubs of their famous chocolate icing. They sold ten 16-ounce tubs of icing and several eight-ounce tubs. Altogether they sold 280 ounces of icing. How many eight-ounce tubs did they sell? (10 x 16) + (n x _____ ) = _____ During a five-day period, Ben worked in the bakery for a total of 18 hours. He worked four hours a day for the first four days. How long did he work on the fifth day? (4 x 4) + n = _____ Mr. Eaton sold $1,000 worth of cupcakes and cookies. He sold 30 dozen cupcakes at $18 per dozen, and he sold cookies at $10 per dozen. How many dozen cookies did he sell? (30 x 18) + (n x 10) = _____ 1 2 3 4 5 6 7 8 9 10 Bonus: The Eatons sold 36 pies for $12 each. They also sold slices of pie for $3 each. In all, they made $600. How many slices of pie did they sell? Write and solve the equation. n = _______________ n = _______________ n = _______________ n = _______________ n = _______________ n = _______________ n = _______________ n = _______________ n = _______________
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