Answer:
x = 5
Step-by-step explanation:
Applying Pythagoras' identity to the right triangle
x² + 12² = 13²
x² + 144 = 169 ( subtract 144 from both sides )
x² = 25 ( take the square root of both sides )
x = = 5
It is A hope this helps :)
7.79 = .01x + .05x + .10x + .25x =
<u>7.79</u><span> = </span><u>.41</u>x
.41 = .41
<span>x= 19</span>
multiply the left one by 2:
5/6 = 10/12