1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Lady_Fox [76]
4 years ago
9

Which expression could be substituted for y in the second equation to find the value of x?

Mathematics
1 answer:
EastWind [94]4 years ago
6 0

value of x is x=-\frac{29}{4} and value of y is y=-\frac{9}{2}

Step-by-step explanation:

We need to find Which expression could be substituted for y in the second equation to find the value of x

The given equations are:

2x-y=-10\,\,\,(1)2x - 3y= -1\,\,\,\,(2)

For putting value of y in second equation, we will find from equation 1

From equation 1:

2x-y=-10\\-y=-10-2x\\y=10+2x

Putting value of y i.e y=10+2x in equation (2) to find value of x

2x-3y=-1\\2x-3(10+2x)=-1\\2x-30-6x=-1\\-4x=-1+30\\-4x=29\\x=\frac{29}{-4}\\x=-\frac{29}{4}

So, now finding value of y by putting value of x= -29/4 in eq(1)

2x-y=-10\\2(-\frac{29}{4})-y=-10\\-\frac{29}{2}-y=-10\\-y=-10+\frac{29}{2}\\ -y=\frac{-20+29}{2}\\ -y=\frac{9}{2}\\ y=-\frac{9}{2}

So, value of x is x=-\frac{29}{4} and value of y is y=-\frac{9}{2}

Keywords: System of equations

Learn more about System of equations at:

  • brainly.com/question/6075514
  • brainly.com/question/7490805
  • brainly.com/question/13168205

#learnwithBrainly

You might be interested in
Which is the solution to the inequality? y minus 27 greater-than-or-equal-to negative 13
Y_Kistochka [10]

Answer:

y is greater than or equal to 14

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
B. What number is equal to 280 tenths + 19 thousandths?<br><br> HELP!!
Kaylis [27]

The number that equals 280 tenths + 19 thousandths is 28.019

<h3>How to determine the number?</h3>

The statement is given as:

280 tenths + 19 thousandths

Rewrite the terms of the expression as fractions

So, we have

280/10 + 19/1000

Evaluate the quotients

28.0 + 0.019

Add both numbers

28.019

Hence, the number that equals 280 tenths + 19 thousandths is 28.019

Read more about expressions at:

brainly.com/question/723406

#SPJ1

3 0
2 years ago
Plz help i will give brainly!
Irina-Kira [14]

Answer:

The answer is c

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Find the center and radius when x^2+y^2+4x-4y=17
coldgirl [10]

Answer:

the center is (-2,2) and the radius is 5

3 0
4 years ago
Read 2 more answers
Thank you so much to anyone who answers this question!
Anna71 [15]

C. The 40th customer

4 0
3 years ago
Other questions:
  • Fill in missing information to make the equality true: <br> (... +2a)2 = … +12ab2+4a2.
    8·2 answers
  • PLS HELP I WILL GIVE BRAINLIIEST Which equation results from adding the equations in this system?
    15·2 answers
  • Whats the vertex at of y-13=2(x+4)^2
    7·2 answers
  • Which symbol will make |-6| ? -6 true?<br><br> A &gt;<br><br> B &lt;<br><br> C =
    10·1 answer
  • A grocer mixes peanuts that cost $1.41 per pound and walnuts that cost $2.61 per pound to make 100 pounds of a mixture that cost
    13·1 answer
  • 6. HOT AIR BALLOON А balloon rises<br>340 feet into the air. Then it descends<br>130 feet.​
    8·2 answers
  • 16. Kim spends 10 minutes washing her car. Denzel spends 3 times as many minutes (d)
    7·1 answer
  • In the standard equation of a circle (x – h)2 + (y – k)2 = r2, h and k are...
    15·1 answer
  • Ms. Basta received a 30% discount on the purchase of a $1,250 laptop. How much did Ms. Basta save?
    10·2 answers
  • 8TH GRADE MATH ¯\_(ツ)_/¯
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!