Question

A certain NYC taxi driver has decided to start charging a rate of r cents per person per mile. How much, in dollars, would it cost 3 people to travel x miles if he decides to give them a 50% discount?
a. 3xr/2
b. 3x/200r
c. 3r/200x
d. 3xr/200
e. xr/600

Answer 1

Answer:

$\frac{3xr}{200}$

Step-by-step explanation:

A certain NYC taxi driver has decided to start charging a rate of r cents per person per mile

rate is cents . convert it in to dollars

1 cent = 1/100 dollars

r cents =  r/100 dollars

Each people travels x miles

cost is $\frac{r}{100} \cdot x$

For 3 people the cost is

$3\frac{r}{100} \cdot x$

Discount is 50%, so we divide by 2

$\frac{3\frac{r}{100} \cdot x}{2} =\frac{3xr}{200}$