chris54660
chris54660 chris54660
  • 14-01-2022
  • Mathematics
contestada

I don’t understand how to solve that with proportion math

I dont understand how to solve that with proportion math class=

Respuesta :

evatait03
evatait03 evatait03
  • 14-01-2022
it cropped some of it out but here’s my work
answer: -12 and 17
Ver imagen evatait03
Answer Link
isaacdeyarmin95
isaacdeyarmin95 isaacdeyarmin95
  • 14-01-2022

Answer:

Step-by-step explanation:

x-9/3=56/x+4;  (x-9/3)*3/1=(56/x+4)*3/1;  x-9= 168/x+4;  

(x-9)*(x+4)=(168/x+4)*(x+4);  x^2+4x-9x-36=168; x^2-5x-36-168=168-168;

x^2-5x-204=0; x=17 or x= -12

yes i know there is a bit missing i just put it into a graphing calculator at the last part

Answer Link

Otras preguntas

When throughout history have we seen types of government or economic systems cause conflict between two countries?
Narrative Writing: You own a small Roman farm in the 100s B.C.E. Write a letter to a friend describing the changes you have witnessed in agriculture and the Rom
. A _____________________________________________ key is used to determine the identity of an organism
Help me pretty please
Given h() - 4x - 4, solve for a when h(x) -8.
Please help if you know the answer
3. Who were the two chief advisers to the King at this time? a. Richelieu and Mazarin b. Mazarin and Henry C. Richelieu and Henry d. Henry and Louis 4. How old
i need help plz help me
What’s is the area of the circle below use 3.14 for pi 4 ft
What can we say about u