Question

Joseph's lunch at a restaurant costs $13.00. without tax. He leaves. the waiter a tip of 17% of the cost of the lunch, without tax what is the total cost of the lunch, including the tip, without tax? is a math word problem I'm in 7th grade so pls dont make it that hard to explain.

Answer 1

Joseph's lunch costs $13 without tax.

He leaves the waiter a tip of 17% OF THE COST OF THE LUNCH. This means Joseph leaves a tip of

13 + (13 x 17%) = Total cost

Remember, the question specificies that his lunch is paid without tax. Therefore;

$\begin{gathered} \text{Cost}=13.00 \\ \text{Tip}=13\times0.17\text{ (equals 2.21)} \\ (\text{Note that 17\% is mathematically written as 0.17)} \\ \text{Total cost of lunch}=\text{Cost}+\text{Tip} \\ \text{Cost}+\text{Tip}=13+2.21 \\ \text{Cost}+\text{Tip}=15.21 \\ \text{Total cost of lunch=\ 15.21} \end{gathered}$

The total cost of the lunch is $15.21