Seudónimo Seudónimo
  • 25-05-2017
  • Mathematics
contestada

Use Substitution to solve the system of equations.
c+b=12
2b-3c=1 1/2

Respuesta :

hoangsa1269
hoangsa1269 hoangsa1269
  • 25-05-2017
c = -b + 12
2b - 3c = 1 1/2

2b -3(-b+12) = 1 1/2
2b + 3b -36 = 1 1/2
5b = 37 1/2
b = 37.5/5
b = 7.5

c + 7.5 = 12
c = 4.5

b = 7.5   c = 4.5

Hope this helps :)

Answer Link

Otras preguntas

(PLEASE HELP ASAP) (and will give brainlist) The interior plains of the United States include the _____ and the _____. A. Central Lowlands and Great Plains B. G
PLZ HELP ME!!!!!!!!!!!!!!!
1. What is the difference between 6 and 3 A. 6+3 B. 6-3 C. 6/3 D. 6x3
Fill in the blank with the correct conjugation of the verb "venir" according to the subject given. Ustedes _____________ de México.
Why did only the wealthy become knights
Quadrilateral ABCD is reflected over the x-axis.
What term best describes region “B” of the phospholipid model above?
WHICH BEST DESCRIBES THE ASSOCIATION SHOWN IN THE SCATTER PLOT?
3. Through the enteric nervous system, stress causes: a. A change in the composition and function of gut bacteria b. Decreased sensitivity to stomach acid c. Fo
will give brainliest!!! pls help!!!! ¿A qué hora empieza tu primera clase? Use the correct form of the verb empezar. (e.g., My first class starts in the morning