hahntimmy hahntimmy

11-10-2016
Mathematics

contestada

solve the system of equations 3x+2y=14 2x-4y=4

Respuesta :

texaschic101 texaschic101

11-10-2016

3x + 2y = 14....multiply by 2
2x - 4y = 4
----------------
6x + 4y = 28 (result of multiplying by 2)
2x - 4y = 4
----------------add
8x = 32
x = 32/8
x = 4

2x - 4y = 4
2(4) - 4y = 4
8 - 4y = 4
-4y = 4 - 8
-4y = -4
y = -4/-4
y = 1

solution is (4,1)

Answer Link

Otras preguntas

what is server operating system

Four resistors, R1 = 110 Ω, R2 = 820 Ω, R3 = 435 Ω, R4 = 705 Ω are connected to a 3.0 V battery as shown below. Calculate the power dissipated through R4 in uni

Let A(x)=x√(x+8). Answer the following questions. 1. Find the interval(s) on which A is increasing. Answer = ? 2. Find the interval(s) on which A is decreasing

Butler, Inc., has a target debt-equity ratio of 1.30. Its WACC is 9.3 percent, and the tax rate is 21 percent. If the company’s cost of equity is 13.1 percent,

Looking back I wish I never made a promise

Service providers are generally more labor-intensive than manufacturers because of the high level of customization. True or False?a) Trueb) Falsec) Cannot sayd)

30 + � = − 15 30+x=−15

Companies use a lot of flashing lights and bright colors on their building signs to attract customers. They are attempting to appeal to which step in people’s p

Find UW and the area of AVWX. 40 cm 57° 44 cm W Write your answer as an integer or as a decimal rounded to the nearest tenth. UW = cm Area = cm²

conserving electricity at home Power usage part A what appliance are you examining? Part B every appliance has an appliance tag. This tag shows the amount