Question
Camille buys a cake for $\$24.99$$24.99 . She also buys $12$12 brownies. Each brownie costs the same amount. She spends $\$39.99$$39.99 on the cake and the brownies.
Camille finds the cost of each brownie by calculating (39.99 − 24.99) ÷ 12 . Tanya finds the cost of each brownie by solving the equation 39.99 + 12b = 24.99 , where b is the cost of each brownie.
Which approach uses the sequence of operations necessary to find the cost of each brownie: Camille’s, Tanya’s, both, or neither? Explain why.
Camille finds the cost of each brownie by calculating (39.99 − 24.99) ÷ 12 . Tanya finds the cost of each brownie by solving the equation 39.99 + 12b = 24.99 , where b is the cost of each brownie.
Which approach uses the sequence of operations necessary to find the cost of each brownie: Camille’s, Tanya’s, both, or neither? Explain why.
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