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
lukranit [14]
3 years ago
7

HELP! Use the substitution method to solve the system of equations.

Mathematics
1 answer:
vivado [14]3 years ago
4 0

Answer:

No solution

Step-by-step explanation:

6x-2y = 5

-3x + y = 7 ----> y = 3x + 7 ( solve for y by adding 3x to both sides.

Substitute

6x-2(3x+7) = 5   Distribute

6x - 6x + 14 = 5  Combine like terms

14 = 5                 False statement

No solution

You might be interested in
What is the slope of the line passing through the points (1, 3) and (3,9)?
Vikentia [17]

Answer:

3

Step-by-step explanation:

slop formula:

y2-y1

____

x2-x1

y2 is 9 and y1 is 3, so y2-y1 is 6

x2 is 3, x1 is 1, so x2-x1 is 2

6/2=3

4 0
3 years ago
The book company has 5 liters of bug spray on Tuesday they used to .7 L of it how many millimeters of bug spray do they have lef
Citrus2011 [14]
Pretty sure the answer is 4.3 (5 - 0.7 =4.3)
7 0
3 years ago
Suppose y varies directly as x and y = 20 when x = 8. What is the value ofy whenx = 12?
AnnZ [28]

Answer:

y = 30

Step-by-step explanation:

Use the direct variation equation, y = kx

Plug in 20 as y and 8 as x, then solve for k:

y = kx

20 = k(8)

2.5 = k

So, the equation is y = 2.5x

Plug in 12 as x, and solve for y:

y = 2.5x

y = 2.5(12)

y = 30

So, when x = 12, y = 30

7 0
3 years ago
Solve the equation on the interval [0,2π). cos^4x=cos^4xcscx
Luba_88 [7]
\bf cos^4(x)=cos^4(x)csc(x)\\\\
-----------------------------\\\\
cos^4(x)=cos^4(x)\cfrac{1}{sin(x)}\implies cos^4(x)=\cfrac{cos^4(x)}{sin(x)}
\\\\\\
cos^4(x)sin(x)=cos^4(x)\implies cos^4(x)sin(x)-cos^4(x)=0
\\\\\\
cos^4(x)[sin(x)-1]=0\to 
\begin{cases}
cos^4(x)=0\to x=cos^{-1}(0)\\
----------\\
sin(x)-1=0\\
sin(x)=1\to x=sin^{-1}(1)
\end{cases}

\bf \measuredangle x = cos^{-1}(0)\implies \measuredangle x = 
\begin{cases}
\frac{\pi }{2}\\\\
\frac{3\pi }{2}
\end{cases}
\\\\\\
\measuredangle x=sin^{-1}(1)\implies \measuredangle x=\frac{\pi }{2}

8 0
4 years ago
Evaluate the expression.<br><br> I -3 I
sp2606 [1]

Answer: 3

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Other questions:
  • Is 37.5 a rational or an inrational
    10·2 answers
  • Mrs perry shares out 20 biscuits between gemma and zak in the ratio 1:4
    8·1 answer
  • For number 28, are the 2 graphs parallel, perpendicular or neither?
    9·1 answer
  • 28!!!!!!!!!!!!!!!?????????
    12·1 answer
  • Which expressions show how 8 • 54 can be rewritten using the distributive property? Choose all answers that are correct.
    5·1 answer
  • Write the equation of this graph. <br><br> someone please help i will give you brainliest!!!
    7·1 answer
  • Someone pls help me I’ll mark u brainliest
    13·1 answer
  • The value of X and the relationship between the angles
    12·2 answers
  • What is the actual height of the building shown in the model?
    11·2 answers
  • I needs a help please​
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!