Question

If you know this answer plz help me out asap​

Answer 1

the answer is D.

Explanation:

(2s-5+4s-13)*2=108

(6s-18)*2=108

12s-36=108

12s=108+18

s=12

2*12-5=24-5=19 mi

4*12-13=48-13=35 mi

Answer 2

D

Explanation:

The perimeter of a rectangle is given by the formula:

`P=2(l+w)`

From our figure, our length is (2s-5) and our width is (4s-13). So, let's substitute (2s-5) for l and (4s-13) for w. This yields:

`P=2((2s-5)+(4s-13))`

We also know that the perimeter is 108. So, substitute that for P:

`108=2(2s-5+4s-13)`

Solve for s. We can first divide everything by 2:

`54=2s-5+4s-13`

Combine like terms:

`54=(2s+4s)+(-5-13)`

Add or subtract:

`54=6s-18`

Add 18 to both sides:

`72=6s`

Divide both sides by 6:

`s=12`

So, the value of s is 12.

Now, substitute this back in to find our length and width:

`l=2s-5`

Substitute 12 for s:

`l=12(2)-5`

Multiply and subtract:

`l=24-5=19`

Now, let's find the width:

`w=4s-13`

Substitute 12 for s:

`w=4(12)-13`

Multiply and subtract:

`w=48-13=35`

So, our length is 19 and our width is 35.

The choice that reflects this is D.

And we're done!