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

PLEASE HELP!!! If you try to ______ PowerPoint while there are unsaved changes, you will be asked whether you want to save them. fill in the blank.

Which algebraic expression represents the oference of 54 and a number? 2

If a shape is cut ______ to the base, then the cross section looks just like the base

What is the solution to this equation? 2x + 3 = x − 4

Question is in the picture:

these lines are perpendicular. is the statement true or false? y=-5/2x+4 and y=5/2x-3

NEED ANSWER ASAP What were Qin Shihuangdi’s goals for the Qin dynasty? A.to begin building the Great Wall and gain public support B.to increase farm production

Select the action you would use to solve x - 4 = 16. Then select the property that justifies that action. A. Action: Multiply both sides by 4. B. Property: Mult

What is one piece of evidence that supports the claim. "United States interventions in the Middle East and Latin American in the 1960s and 1970s were motivated

Which is the equation in slope-intercept form of a line that contains points D and E?