Seudónimo Seudónimo
  • 13-08-2014
  • Mathematics
contestada

7/9=b/b-10 please help!!

Respuesta :

Аноним Аноним
  • 13-08-2014
[tex]\frac{7}{9}=\frac{b}{b-10}\\\\cross\ multiply\\\\9b=7(b-10)\\9b=7b-70\ \ \ \ |subtract\ 7b\ from\ both\ sides\\2b=-70\ \ \ \ \ \ |divide\ both\ sides\ by\ 2\\\\\boxed{b=-35}[/tex]
Answer Link

Otras preguntas

accurate estimation 719-348
What would be the most likely effect of one company buying a competitor?
Which of the following is NOT a form of formal debate? A. an argument B. policy debate C. parliamentary debate D. Lincoln-Douglass debate
Why were the committees of correspondence powerful?
Which of the following was not an accomplishment of the emperor Trajanlegalized Christianity       built bridges, aqueducts and harbors       reduced taxes
Which theater is considered Shakespeare's theater? A. The Swan B. The Globe C. The Rose D. The Stage
What is the surface area of the prism? A. 144 in2 B. 420 in2 C. 288 in2 D. 140 in2 I really don't know where to post a link to the prism pic
How to change 3 7/8 into an improper fraction
The Panama Canal connects what two bodies of water?
find the prime factorization 504