Question

How in the world do I set this up?

The formula

c = 75 + 30(n - 5) is used to find the cost, c, of a taxi ride where n represents the number of
`(1)/(5)` miles of the ride. Find the cost of a taxi ride of 2/frac{2}{5}


Thanks

Answer 1

Explanation:

The 2 2/5 is not showing up correctly, but I think it means that you are going 2 miles + 2/5 of a mile. If that is not true, leave me a note and I'll correct it.

So 75 and 30(n - 5) represent cents (I think) per 1/5 of a mile.

1 mile has 5 fifths.

2 miles has 10 fifths

2/5 has 2 fifths.

the total is 17 fifths so n = 17

C = 75 + 30(17 - 5)

C = 75 + 30(12)

C = 75 + 360

C = 435

That means you pay 4 dollars and 35 cents.