KMD11
KMD11 KMD11
  • 23-09-2017
  • Mathematics
contestada

I need solve each system by substitution 4x+2y=7;y=5x

Respuesta :

cyxical
cyxical cyxical
  • 23-09-2017
To solve the system if equations substitute the given values and simplify:

4x+2y=7
y=5x


To start off we are given what h equals already so we do not have to solve for it. This means we can just plug in its values into the first equation.

4x+2(5x)=7
Solve for x
4x+10x=7
14x=7
x=7/14
x=1/2

Now that we have an x value substitute back into the second equation to find the y value and be able to create a coordinate point.

y=5x
y=5(1/2)
y=5/2
y=2.5

So your answer would be
(1/2,5/2) or (0.5,2.5)

I hope this helps!
Answer Link

Otras preguntas

capitol of malawi need to know
Which of the following answers is a concept? . Firms b. Students c. Customer satisfaction O d . These are all examples of ' concepts ' .
Johanna carves a square block of wood that has on one side an area of 872 square inches. To the nearest integer, what is the length of the side? A. 30 B. 28
i will give brainliest!!
Analyze the below statement choose the one that correctly demonstrates how to spell cellular respiration and photosynthesis are independent photosynthesis uses
Can someone please help me? :(
If you were to jog one kilometer a few hours after lunch, which stored fuel would you probably tap?.
A horizontal merger Group of answer choices is a merger between firms in the same industry. results in a trust (for example, the Standard Oil Company). is a mer
People pls help for a friend dont want to do it myself
PLS HELP!!:)Find The area