Two sides of a triangle are equal in length. The third side of the triangle is 3 more than the equal sides. If the perimeter of the triangle is 48, what is the length of the longest side? Show work

18

Step-by-step explanation:

Let the length of equal sides be x, then the perimeter is:

2x + (x + 3) = 483x + 3 = 483x = 45x = 15

The longest side is:

15 + 3 = 18

The answer is:  [C]:  " 3.200 * 10⁷  h " .

Explanation:

19.2 * 10⁸  min * (1 hr / 60 min) ;

=  (19.2 * 10⁸)
;  
         60


Divide EACH SIDE of the fraction by "10" ; to get:


(19.2 * 10⁷)
;  
         6



⇒  (19.2) ÷ (6) = 3.2 ;  so rewrite as:


3.2 *  10⁷ ; which corresponds with:

Answer choice:  [C]:  " 3.200 * 10⁷  h " .