Josuesantiago84 Josuesantiago84
  • 01-06-2018
  • Mathematics
contestada

Solve the system of equations 2r + 2s = 50 and 2r – s = 17. A. r = 3, s = 11 B. r = 25, s = 33 C. r = 14, s = 11 D. r = –8, s = 33

Respuesta :

alarisaT
alarisaT alarisaT
  • 01-06-2018

[tex]2r = 17 + s = 50 - 2s \\ 3s = 50 - 17 = 33 \\ s = 11 \\ \\2 r = 50 - 2s \\ 2r = 50 - 2 \times 11 = 50 - 22 = 28 \\ r = 14[/tex]




C. r=14, s =11
Answer Link

Otras preguntas

3(4f-3)+8= -1 +12j How do I solve this
:Select the correct text in the passage.In Henrik Ibsen's A Doll's House, there are numerous references to dolls. Nora mentions how she has bought dolls for her
expanded form for 6009
how to round in math im confused
If five notebooks cost $5.25 how much do three notebooks cost show work
Explain how to do please? 3g + 12 = -40
Which business practice did Rockefeller repeatedly use that helped him succeed in building his oil monopoly
How much sleep does a Jaguar get in 1 year
how do i solve 4x - 7= 29?
As the emponent on the base 10 increases, does the standard notation number get bigger or smaller?