Question

Please help hate geometry

Answer 1

Hope This helps u..!!

Answer 2

`a.\\(12)/(7)=(k)/(8)\ \ \ \ |\text{cross multiply}\\\\7k=12\cdot8\\\\7k=96\ \ \ \ |:7\\\\k=(96)/(7)\to k=13(5)/(7)`

`b.\\(3)/(4)(x+3)=9\ \ \ \ \ |\text{use distributive property}\\\\(3)/(4)x+(3)/(4)\cdot3=9\\\\(3)/(4)x+(9)/(4)=9\ \ \ \ \ |\cdot4\\\\3x+9=36\ \ \ \ |-9\\\\3x=27\ \ \ \ |:3\\\\x=9`

`c.\\(4+m)/(3)=(5)/(6)\ \ \ \ \ |\text{cross multiply}\\\\6(4+m)=3\cdot5\ \ \ \ |\text{use distributive property}\\\\6\cdot4+6m=15\\\\24+6m=15\ \ \ \ |-24\\\\6m=-9\ \ \ |:6\\\\m=-(9)/(6)\\\\m=-(3)/(2)\\\\m=-1(1)/(2)\to x=-1.5`

`d.\\(5)/(9)c-(3)/(4)=(7)/(9)c\ \ \ \ |+(3)/(4)\\\\(5)/(9)c=(7)/(9)c+(3)/(4)\ \ \ \ |-(7)/(9)\\\\-(2)/(9)c=(3)/(4)\ \ \ \ |\cdot\left(-(9)/(2)\right)\\\\c=-(27)/(8)\to c=-3(3)/(8)`