frbianastrp
frbianastrp frbianastrp
  • 04-07-2016
  • Mathematics
contestada

Given: x y = 10. if x = -21, what is y ?

Respuesta :

Raven45
Raven45 Raven45
  • 06-07-2016
y= 31, if x+y=10....
Answer Link
gomezgerman032 gomezgerman032
  • 27-03-2020

Answer: y= -10/21

Step-by-step explanation:

Hi, to answer this question we have to solve the equation given:

xy =10

So, we have to replace the value of x (variable)  in the expression by the number -21.

If x=-21,  

(-21) y =10

Solving for y:

y= 10/-21  

y= -10/21or -0.47 (decimal form)

Feel free to ask for more if needed or if you did not understand something.

Answer Link

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