Question

Derrick went to the grocery store and purchased of a pound of ham for $6.99 per pound, of a pound of cheese for $3.99 per pound, a loaf of bread for $2.49, and 1 gallon of milk for $2.89. The sales tax on food items in his state is 4.3%. What is Derrick's total for the groceries after tax? Round your answer to the nearest cent.

Answer 1

`\begin{gathered} (3)/(4)\text{ pounds of ham = \$6.99 per pound} \\ (1)/(4)\text{ pounds of ch}eese=\text{ \$3.99 per pound} \\ a\text{ loaf of bread=\$2.49} \\ 1\text{ gallon of milk= \$2.89} \end{gathered}`

The total purchase is

`\begin{gathered} 1\text{ pounds of ham= \$6.99} \\ (3)/(4)\text{ pounds =}(3)/(4)*6.99=(20.97)/(4)=\text{ \$}5.2425 \\ \\ 1\text{ pound of che}ese=\text{ \$3.99} \\ (1)/(4)\text{ pound of che}ese=(1)/(4)*3.99=\text{ \$}0.9975 \\ \\ \text{total}=0.9975+5.2425+2.49+2.89=\text{ \$}11.62 \end{gathered}`

After paying tax his total will be

`\begin{gathered} (4.3)/(100)*11.62=(49.966)/(100)=\text{ \$}0.49966 \\ \\ \text{total}=0.49966+11.62=\text{ \$}12.11966 \\ \text{total}=\text{ \$}12.12 \end{gathered}`