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
WITCHER [35]
3 years ago
14

Reasoning Solve the system of linear equations using substitution. Use pencil and paper. Which

Mathematics
1 answer:
Y_Kistochka [10]3 years ago
5 0

Answer:

Since the first equation x is equal to 4y - 9, it is easier to substitute 4y - 9 in for x in the second equation.

x = -1    y = 2

Step-by-step explanation:

Since the first equation x is equal to 4y - 9, it is easier to substitute 4y - 9 in for x in the second equation.  That would give you

4y - 9 + 4y = 7

8y - 9 = 7

8y = 16

y = 2

x = 4y - 9 = 4(2) - 9 = 8 - 9 = -1

It is always a good idea  to check and see if your results satisfy the two equations

You might be interested in
Verify the identity. <br><br> sin (x+pi/2)=cos x
hram777 [196]
Given data 
<span>sin (x+pi/2)=cos x
</span>now using sin law
sin(a+b)=sin(a)cos(b)+cos(a)sin(b)
now using above values
sin(pi/2+x)=sin(pi/2)cos(x)+cos(pi/2)sin(x)
as we know that
sin(pi/2)=1
cos(pi/2)=0
now putting these values
sin(pi/2+x)=1*cosx+0*1
sin(pi/2+x)=cosx
hence proved that

<span>sin (x+pi/2)=cos x</span>
4 0
3 years ago
Need help solving this 10x+32
Usimov [2.4K]
10x+32=0
10x=-32
x=-32/10 or -3.2 or -16/5

8 0
3 years ago
What is 0.5 divided by 2.675
eduard

.186915888

that is the answer

if I meant 2.675 divided by .5 it is 5.35

7 0
3 years ago
Read 2 more answers
Subtract (4x^2 + x + 8) - (2x^2 + 3x - 1)
Ludmilka [50]

Answer:

2x^2-2x+9

Step-by-step explanation:

5 0
3 years ago
Can you pllllsssssss help meeeeee
d1i1m1o1n [39]

Answer:

0

Step-by-step explanation:

find mean : 2+3+4+7 divided by 4 equals 4

subtaract mean from valuses: 2-4= -2 , 3-4= -1 , 4-4= 0 , 7-4= 3 ,

find mean with new numbers: -2+-1+3+0 divided by 4 equals 0 (everything cancels out)

3 0
3 years ago
Other questions:
  • [36÷(-9)+(+10)]÷7-[3+(-2-3).2]+1
    9·1 answer
  • An angle through 1/6 of circle. What is the measure of this angle?
    11·1 answer
  • Compare the pair on numbers. 3/4 ? 33/40
    10·2 answers
  • -x/8-11=12 <br> / means fraction
    5·2 answers
  • Which quadratic rule represents the data in the table?
    9·1 answer
  • Complete the inequality statement.
    12·1 answer
  • The table shows the ratio between the number of packets and the number of seeds of a certain plant contained in them:
    7·1 answer
  • What is the slope of the line
    11·1 answer
  • Question 10 of 10
    5·1 answer
  • Which of the following is most likely the next step in the series​
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!