candyvactoritscandyv candyvactoritscandyv
  • 16-07-2016
  • Mathematics
contestada

Fill in the other coordinate for the line 7x - 5y = 21: (4, )

Respuesta :

texaschic101
texaschic101 texaschic101
  • 16-07-2016
7x - 5y = 21....(4,?)...so sub in 4 for x and solve for y
7(4) - 5y = 21
28 - 5y = 21
-5y = 21 - 28
-5y = - 7
y = 7/5

check..
7(4) - 5(7/5) = 21
28 - 35/5 = 21
28 - 7 = 21
21 = 21 (correct)

the other coordinate is 7/5......(4,7/5)
Answer Link

Otras preguntas

how do you divide a fraction
What is the difference between the formal and informal justice systems?
thirteen from twice a number is equal to seventeen .what is the number
how do you write the area of the rectangle as a product and as a sum?
What are two functions of cell surface markers?
Which metal is more reactive calcium or cobalt
what will happen to the brightness of the lamp when the the slider is moved towards x
As a result of the Peloponnesian War, Sparta __________.Select one of the options below as your answer:A. conquered Asia MinorB. was conquered by PersiaC. becam
Why was there such a rise of caudillos in Mexico?
How many moles of atoms are there in 27g of aluminium