Question

Your total restaurant bill for food, drinks, and a 10% tip is $37.40. What is a good estimated

cost for just the food and drinks?
O$33.50
O$37.00
O$36.00
O$34.00

Answer 1

well, the total was really "x", which oddly enough is 100%, but if we include the tip that'd be 100% + 10% = 110%, which we happen to know is $37.40, that's the cost of food and drinks plus tip hmmm so

`\begin{array}{ccll} amount&\%\\ \cline{1-2} x & 100\\ 37.40& 110 \end{array} \implies \cfrac{x}{3740}~~=~~\cfrac{100}{110} \\\\\\ \cfrac{x}{37.40}=\cfrac{10}{11}\implies 11x=374\implies x=\cfrac{374}{11}\implies x=34`

Answer 2

Answer:$34

Explanation: