StormRider6379 StormRider6379

01-05-2017
Mathematics

contestada

Which ordered pair is a solution of the system of equations?

y=3x+1

y=5x-3

A.(0,1)

B.(2,3)

C.(2,7)

D.(1,2)

Respuesta :

Kmieteczka Kmieteczka

01-05-2017

{y=3x+1 |*5
{y=5x-3 |*(-3)

{5y=15x+5
{-3y=-15x+9
+___________
2y=14

{y=7
{7=3x+1

{3x=6
{y=7

{x=2
{y=7

The answer: C

:)

Answer Link

Otras preguntas

Which of the following were changes America experienced during the second half of the nineteenth century? More then one answer a war with Great Britain major t

What are two halves that geographers divide the earth

Which belief was generally held by the delegates to the Constitutional Convention of 1787? A. A stronger central government was necessary to maintain order. B.

281 480 100 what place value is the 8 in

why do you suppose the population of deer declined in 1925, although the elimination of predators?

How many grams of calcium phosphate can be produced when 78.5 grams of calcium hydroxide reacts with excess phosphoric acid? Unbalanced equation: H3PO4 + Ca(OH)

What was the "Era of Good Feelings"? a time when Americans moved West a time when there was little political strife a time when Federalists held political power

Three times the sum of a number and 4 is 8 less than one half the number

New London, Connecticut, is the location of the A. National Oceanic and Atmospheric Administration. B. Air Force Academy. C. Naval Command Center. D. Coast Guar

.340 in expanded notation