Maria drove to a business appointment at 50mph in the morning. her average speed on the return trip in the afternoon was 40 mph. the return trip took 1/4hr longer because of traffic. how far did she travel to the appointment?

Distance to appointment point = 5 miles

Step-by-step explanation:

Let s be the distance to the appointment point,

We have Maria drove to a business appointment at 50mph in the morning.

Time taken in the morning

Her average speed on the return trip in the afternoon was 40 mph.

Time taken in the afternoon

Given that the return trip took 1/4hr longer because of traffic.

That is

Substituting

Distance to appointment point = 5 miles

you need a common difference between consecutive terms to be constant, like 1,2,3,4 or 2,4,6,8, or 1,3,6,9

distance covered by pamela in 9 l of fuel = 99km

let us apply unitary method here.

distance covered by pamela in 1 l of fuel =99/9 =11 km

now let us find distance covered by pamela if she has 12 l of fuel.

distance covered in 12 l = distance covered in 1 l of fuel * 12

we know that distance covered by here in 1 l is 11 km.

so distance covered in 12 l of fuel = 11*12 = 132 km.