Question

Help me please with this assignment

Answer 1

Given:

Let the cost of chocolate bar be 'x'.

`\text{Cost of Peanut butter bar=x+0.07}`
`\begin{gathered} 5(x+0.07)+6(x)=6.40 \\ 5x+0.35+6x=\text{6}.40 \\ 11x=6.40-0.35 \\ x=(6.05)/(11) \\ x=0.55 \end{gathered}`

Cost of chocolate bar is $0.55