Plz help me :(
Oof ;-;

6. I know that Christine hiked the Evergeen trail twice and the Yellow River trail once. I also know that Brian hiked the three longest trails once. I am asked to find how many more miles did Brian hike than Christine. I do not need to know that the family is staying at the state park for a week.

7. I need to find out how many miles Christine hiked and how many miles Brian hiked.

8. C = Christine's total

   B = Brian's total

(4 3/4 x 2) + 5 1/4 = C

6 + 5 1/4 + 4 3/4 = B

9. (4 3/4 x 2) + 5 1/4

    (19/4 x 2) + 5 1/4

    19/2 + 5 1/4

     9 1/2 + 5 1/4

      C = 14 3/4

  6 + 5 1/4 + 4 3/4

  5 4/4 + 5 1/4 + 4 3/4

      B = 16

    16 - 14 3/4 = 5 1/2

10. It makes sense because Brian three of the longest trails while Christine didn't

6.

We know that Christine hiked Evergreen Trail twice and the Yellow River trail once. Also, that Brian hiked each of the three largest trails once. We are asked to find how many more miles Brian hiked than Christina.

7.

Before we answer the final question, we need to know how long these trails are.

8.

Christine

Evergreen: 4 3/4 × 2 = 6 3/4

Yellow River: 5 1/4 × 1 = 6 1/4

Brian

Hillcrest: 6 × 1 = 6

Yellow River: 5 1/4 × 1 = 6 1/4

Evergreen: 4 3/4 × 1 = 5 3/4

9.

Christine's total miles = 13

Brian's total miles = 19

To find the difference, we subtract the highest number by the smallest one.

So,

19 - 13 = 6

10.

This answer makes sense because Brian in fact did walk more miles than Christine and if you add 6 to 13 you get 19, or you can subtract 6 from 19 and get 13. This is a way to check that the answer is correct.

:)

hello from mrbilldoesmath!

answer:

a(n) - a(n-1) -3

discussion:

this ones a bit interesting. given a(n) = 5 - 3n consider this:

a(n-1) = 5 - 3(n-1)

          = (5 - 3n) + 3             => but a(n) = 5 - 3n, the first term

          = a(n)   + 3                 => subtract 3 from both sides

a(n-1) -3 = a(n)  

or

a(n) - a(n-1) -3

you,

mrb

relating to or denoting a system of numbers and arithmetic based on the number ten, tenth parts, and powers of ten.

step-by-step explanation: