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
Over [174]
3 years ago
8

2x+y=5 , 3x+2y=8 solve using cross multiplication​

Mathematics
1 answer:
Xelga [282]3 years ago
5 0

Answer:

x=2

y=1

Step-by-step explanation:

2x+y=5

3x+2y= 8

<=> 6x+3y=15

6x+4y=16

<=> -y=-1

2x+y=5

<=> y=1

2x+1=5

<=> y=1

2x=4

<=> y=1

x=2

You might be interested in
Find the of the line
Umnica [9.8K]

Answer:

D

Step-by-step explanation:

Using the Slope Equation

Pick two points on the line and determine their coordinates.

Determine the difference in y-coordinates of these two points (rise).

Determine the difference in x-coordinates for these two points (run).

Divide the difference in y-coordinates by the difference in x-coordinates (rise/run or slope

7 0
2 years ago
C=2pie r solve for r
S_A_V [24]

Answer:

r = C / (2pie)

Step-by-step explanation:

C = 2pie x r

divide both sides by 2pie to isolate r

C / (2pie) = r

r = C / (2pie)

8 0
3 years ago
Identify the property used in the first four steps to solve the equation 4(x-7)=2x-6
myrzilka [38]

Answer:

x = 11

distributive law

additive law

multiplication property

Step-by-step explanation:

Given in the question an equation

4(x-7) = 2x-6

Distributive law

a(b+c) = ab +ac

4x - 4(7) = 2x - 6

4x -28 = 2x - 6

Use the addition property of equality to reduce the 2x on the right.

4x - 2x - 28 = 2x - 2x -6

4x -2x -28 = -6

Use the addition property of equality to reduce -28 to zero on the left.

4x - 2x- 28 + 28 = -6 + 28

2x = 22

Use the multiplication property of equality to reduce 2x to just x

2x2 = 22/22

x = 22/2

x = 11

4 0
3 years ago
A zoo train ride costs $3 per adult and $1 per child. On a certain day, the total number of adults (a) and children (c) who took
bearhunter [10]
a+c=30
3a+c=50
c=30-a
3a+30-a=50
2a=20
a=10
a+c=30
10+c=30
c=20

10 Adults and 20 Children 
8 0
3 years ago
Determine if the given differential equation is exact (e^2y-y cos xy)dx+(2xe^2 y-cos xy+2y)dy=0
rewona [7]
\dfrac\partial{\partial y}\left[e^{2y}-y\cos xy\right]=2e^{2y}-\cos xy+xy\sin xy

\dfrac\partial{\partial x}\left[2xe^{2y}-y\cos xy+2y\right]=2e^{2y}+y\sin xy

The partial derivatives are not equal, so the equation is not exact.
7 0
4 years ago
Other questions:
  • Factor by completing the square 5x^2-21=10x
    11·1 answer
  • 8 ft<br> 10 ft<br> Find the exact volume of the cylinder.
    6·1 answer
  • ASHANTI AND MARIA WENT TO THE STORE TO BUY SNACKS FOR THEIR BACK TO SCHOOL PARTY. THEY BOUGHT BAGS OF CHIPS,PRETZELS,NACHOS. THE
    12·1 answer
  • The equation of a straight line is 5y=7x+3 <br> what is the gradient of the line?
    5·1 answer
  • 7.
    10·2 answers
  • Which value of x makes the equation -2(1-4x)=3x+8 true?
    6·1 answer
  • A<br> B<br> C<br> OR<br> D<br> pls pls pls
    8·2 answers
  • Please help I will brainliest!! Really urgent!!
    13·2 answers
  • Which of the following is most likely the next step in the series?
    13·2 answers
  • Bob and joe have a class together at Kensington college. They leave the class at the same time. Bob goes to the library at 4 mil
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!