It will take her 51.4 minutes.
Explanation:
You would do 12/7 and then multiply that answer by 30.
S=2d
4s+3d=300000-80000
4s+3d=220000, now using s=2d in this equation you get:
4(2d)+3d=220000
8d+3d=220000
11d=220000
d=20000
So each daughter gets 20000 and each son gets 40000.
< BDM = 45 <==
DM ( the angle bisector) divides < BDJ into 2 equal angles. And since < CDJ = 90, < BDJ = 90.....and the bisector splits < BDJ into 2 equal angles, so < BDM = 45 and angle JDM = 45
6x^4/3x=2x^3 9x^2/3x=3x 12x/3x=4 well final answer is 2x^3+3x+4