kyliemo2003 kyliemo2003

01-02-2017
Mathematics

contestada

Solve the system of equations.
2x-y=5
3x+2y=4

A.) (3,1)
B.) (0,2)
C.) (2,-1)
D.) (9/7,17/7)

Respuesta :

Jedimaster13 Jedimaster13

01-02-2017

2x - y = 5 also equals 4x - 2y = 10

4x-2y=10
+3x+2y=4
7x = 14
x = 2

2(2) - y = 5
-y = 1
y = -1

so, B. (2,-1)

Answer Link

Otras preguntas

When were Austria's present borders created? A)after Napoleon was defeated B)during the mid-1800s C)when the Austro-Hungarian empire was formed D)at the end

Teachers can improve a student s self-esteem by a. being critical of their work. c. controlling the learning environment. b. letting a student set his or her

A transformer has a primary voltage of 115 V and a secondary voltage of 24 V. If the number of turns in the primary is 345, how many turns are in the secondary?

what does n + 4n- 22=5 k equal?

Increasing your vocabulary means ?

Tony has $727.29 in his checking account. He must maintain a $500 balance to avoid a fee. He wrote a check for $248.50 today. Write and solve an inequality to s

The sub-layer that protects us from ultraviolet radiation is the _____. troposphere ozonosphere ionosphere exosphere

Which is the main light-absorbing pigment for photosynthesis? carotene chlorophyll hemoglobin anthocyanin User: Which is an example of why the process of photos

What is the process of grouping things based on their similarities?

Simplify 3√125. Thanks!