BrownieWuver BrownieWuver

02-02-2015
Mathematics

contestada

How many solutions are there to the following system of equations?

4x – 14y = 6
–2x + 7y = –3

A.
1

B.
2

C.
infinitely many

D.
0

Respuesta :

02-02-2015

[tex]4x-14y=6 \\ -2x+7y=-3 \ \ \ |\times 2 \\ \\ 4x-14y=6 \\ \underline{-4x+14y=-6} \\ 4x-4x-14y+14y=6-6 \\ 0=0 \\ always \ true \\ \\ \boxed{\hbox{infinitely many solutions}} \Leftarrow \hbox{answer C}[/tex]

Answer Link

Otras preguntas

80 as a product of prime factors

Jaime has 16 grapes. Samantha has 20 grapes. Each girl eats of her grapes. Which statement is true? A. Jaime ate more grapes than Samantha did. B. S

What significance does the Jewish temple still have today

The colonies more important as a source for blank as Europe became more industrialized

80 kg decreased by 63%

Which type of powers does this quote refer to, and why is this type often the source of debate?

i need help again please

What factors dose 28 and 44 have in common

Is all of this correct and how do I color it?

Mr.halls car used 2.2 gallons of gasoline this week. He drove a total of 37.9 miles. If the car got the same gas mileage for the entire trip.hiw many miles did