X=invested at 10%12000-x=invested at 15% .10x+ (.15)(12000-x)=1440 ;; 12% of the total amount is 12% of $12000. .10x + 1800-.15x=1440
-0.05x=-360x=7200 12000-x=4800 $7200 at 10%=$720$4800 at 15%=$720 That is $12000 earning $1440, and that is 12%
Answer:
3
- 4x - 32
Step-by-step explanation:
(3x+8)(x-4)
=3
-12x + 8x -32
=3
- 4x - 32
The area is 19.5 and the perimeter is 23.1
It is 484 m^2 ,to my understanding!