Question

Kristin wants to spend no more than $50 for a birthday dinner at a restaurant, including a 15% tip. What is the most that the meal can cost before tip

Answer 1

The most that a meal can cost before tip = $43.47

Explanation:

Kristin's maximum budget for a birthday dinner = $50 inclusive of 15% tip.

Let the cost of meal that Kristin orders in dollars be
`=x`

15% of the cost of meal is tip which would be in dollars = 15% of
`x=0.15\ x`

So total cost of dinner would be
`=x+0.15x`

We know that the total should be no more that $50. So, we have

`x+0.15x\leq50`

⇒
`1.15x\leq50`

Dividing both sides by 1.15.

⇒
`(1.15x)/(1.15)\leq(50)/(1.15)`

∴
`x\leq43.47`

So, the most that a meal can cost before tip = $43.47