taylorlinklater taylorlinklater

01-11-2017
Mathematics

contestada

Help!! Need this question done in 20mins. I don't have a graphing calculator to give me the window screen!

Help Need this question done in 20mins I dont have a graphing calculator to give me the window screen class=

Respuesta :

choixongdong choixongdong

01-11-2017

2x - y = 1
2x + y = 7
-------------------add
4x = 8
x = 2

2x - y = 1
2(2) - y = 1
-y = -3
y = 3

answer (1,3)

Answer Link

Otras preguntas

Two parents with dimples have a child with no dimples. The allele D for dimples is dominant. What are the possible genotypes of the parents? I. DD and Dd II. Dd

The length of an arc of a circle is equal to 1/5 of the circumference of the circle. If the length of the arc is 2π, the radius of the circle is

Indicate which pattern of evolution is shown by the many species of finches on the Galápagos Islands.

Which of the following can fix nitrogen? Answer A.human industrial processes B.lightning C.certain bacterial species D.all of the above

how much sperm does it take to make a baby?

Which decimal is equivalent to 13/20?

If 6x −3 = −5x +7, then x =? Can someone explain this one?

What is the main difference between the right side and left side of the heart?

Write good insulators around the home

A rectangle has an area of 30 square units and a perimeter of 34 meters.what are the dimensions of this rectangle