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

5% of 8000 is what number

what is 304 divided by 2 minus 26 plus 17 times 16

The greater the force exerted by the engine of a car over a set distance, the greater the change in ?

Darwin’s age is 6 years greater than twice fiona’s age. if darwin is 50 years old, how many years old is fiona?

Problem page find two consecutive whole numbers that 20 lies between.

Which 2 consecutive whole # does the square root of 55 lie between? Explain how you determined the 2 whole #

Which one of the following statements best defines the Federalists? political party opposed to the Constitution delegates who approved the Constitution politica

Scrie intelesul expresiilor Colega mea ia cuvantul la cercul literal -Ia seama la ce vorbesti Paul ii ia peste picior pe colegii lui Ana o ia la sanatoasa print

In which area does clean drinking water present the biggest problem? cities in LDCs polar regions tropical regions urban areas in MDCs

solve |x + 7| = 12 a. {-19, -5} b. {-5,19} c. {-19,5} d.{5,19}