Question

7. Mariko and her friend spent $24.50 onlunch. Their lunches cost the same amount,and they used a $4 off coupon. Determinethe cost of each lunch. (Example 2)Please help

Answer 1

Let's begin by listing out the information given to us:

Mariko & friend = $24.50

Their lunches cost the same amount: x + x = 2x

Discount Coupon = $4

The cost of each lunch is given by:

`\begin{gathered} c(total)_{}_{}=24.50-4=21.50 \\ c(total)_{}=\text{\$}21.50 \\ The\text{ cost of each lunch is given by:} \\ \frac{c(total)_{}}{2}\Rightarrow(21.50)/(2)\Rightarrow10.75 \\ c=\text{ \$}10.75 \end{gathered}`