Question

A car drives 40 miles on local roads at 20 mph, and 180 miles on the highway at 60 mph, w Your dinner bill is $25 before tax. The tax rate is 8%. You decide to give the waiter 10% tip based on your pre-tax bill. What is the TOTAL amount of cash you should pay?Hat is the average speed of the entire trip?

Answer 1

Answer and Step-by-step explanation:

$Let's~solve~your~problem!$

Formula :

$speed=\frac{distance}{time}$

Solving for time:

$Time~taken~to~cover~40~miles~on~local~ roads~= \frac{40}{20} = 2~hours$

$Time~taken~to~cover~180~miles~on~the~highway~=$ $\frac{180}{60}=3~hours$

$Total~Time~=~5~hours$

Solving for distance:

$Total~Distance=40 + 180 = 220$

Average speed:

$\frac{Total~distance}{Total~time} = \frac{225}{5} = 44~miles~per~hour$