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
Mekhanik [1.2K]
2 years ago
9

Solve the system by substitution. 2x=y-10 2x+7=2y The solution is ( , ).

Mathematics
1 answer:
Ugo [173]2 years ago
7 0

Answer:

Step-by-step explanation:

2x=y-10

2x+7=2y

====

2x=y-10

x = (y-10)/2

Use this in the 2nd equation:

2x+7=2y

2((y-10)/2)+7=2y

y - 10 + 7 = 2y

-y -3 = 0

-y = 3

y = -3

Use this in either equation:

2x=y-10

2x=(-3)-10

x = -(13/2) or - 6.5

(-6.5, -3)

See attached graph.

You might be interested in
What is 15% of 82? <br><br> PLEASE HELP ME IT I DON'T KNOW IT
Rufina [12.5K]

Answer: the answer is 12.3

Step-by-step explanation:

Just do 15/100(82)

5 0
2 years ago
Read 2 more answers
A farm has a square fenced-in area with side length x where the farm gives children pony rides. Adjacent to one entire side of t
Vika [28.1K]

Answer:

1) x²+4x=2700

2) 50x50

Step-by-step explanation:

Pony area = x²

line-up area=4x

x²+4x=2700

x²+4x-2700=0

(x-50)(x+54)

So x= 50 or -54.  Since it can’t be a negative number, it must be 50.

CHECK:

Square = 50x50 = 2500

Line up area = 50x4 = 200

2500+200=2700 YES

6 0
3 years ago
How do you find the area of this composite figure?
Yanka [14]
Split the shape into smaller shapes, (see attachment)
find the area of the split shapes. So first find the area of the triangles
A = 1/2bh
A = 1/2*2*3
A = 1/2*6
A = 3
so that is the area of one triangle. the area of the other is
A = 1/2*4*3
A = 1/2 * 12
A = 6
now find the area of the rectangle
A = l*w
A = 9*3
A = 27
add them all together
27 + 6+ 3 = 36
the area of the total figure is 36

5 0
3 years ago
Find the constant of proportionality for the table of values and write in the form y = kx
sveta [45]

Answer:

Option 'B' is correct.

Step-by-step explanation:

Since we have given that

Number of lemons used is denoted by 'y'.

Number of glasses of lemonade is denoted by 'x'.

As we can observe that ,

\frac{6}{24} = \frac{8}{32} = \frac{7}{28} = \frac{2}{8} = \frac{4}{16} = \frac{1}{4} \\

so we can write i as

\frac{x}{y} = \frac{1}{4}

By cross multiplication

<em>y=4x</em>

So, if write it in the form y=kx,

It will be y=4x.

7 0
3 years ago
Read 2 more answers
What is a “balance brought forward?” a. The amount of money you transfer from another checking account b. The amount of money yo
sp2606 [1]
I believe the correct answer from the choices listed above is option C. A balance brought forward would be the amount of money you have from the previous statement period. It is the p<span>revious </span>balance<span> on an account which is carried over to the next billing period. Hope this answers the question.</span>
8 0
3 years ago
Read 2 more answers
Other questions:
  • Three cowboys share 25.6 pounds of bacon.how many bacon dose each cowboy receive?
    7·1 answer
  • What is the solution of this system of equations?<br><br>y = 3x + 5<br>y = -x + 3​
    11·1 answer
  • Which of the following describes the graph of y=3√(27x−54)+5 compared with the parent cube root function? Horizontal translation
    13·1 answer
  • Drag the tiles to the correct boxes to complete the pairs.
    5·1 answer
  • Which function has an inverse that’s also a function?
    5·2 answers
  • Will give brainlest if correct, and 5 stars.<br><br> Solve for x
    5·2 answers
  • ∆ABC is dilated using a scale factor of 12 to produce ∆A'B'C'.
    13·1 answer
  • I need help ////////
    7·1 answer
  • The sum of two consecutive integers is -95. Find the integers. State the unknov-
    9·1 answer
  • Fing the LCM of 54 and 81
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!