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
pishuonlain [190]
3 years ago
9

What is the solution to the system of equations below?

Mathematics
1 answer:
katen-ka-za [31]3 years ago
7 0

4x  - y =  - 5 \\  - 2x + y = 3

Solve the second equation for y

4x - y =  - 5 \\ y = 3 + 2x

Substitute the given value of y into the first equation

4x - (3 + 2x) =  - 5

Solve the equation for x

x =  - 1

Substitute the given value of x into the second equation

y = 3 + 2( - 1)

Solve the equation for y

y = 1

The possible solution of the system is the ordered pair (x,y)

(x,y) = ( - 1, 1)

You might be interested in
Please help me brainliest
liq [111]

Answer:

1, 2, 3, 4

Step-by-step explanation:

  1. 4 1/3·1 = 4 1/3 Good
  2. 7 1/3·2 2/5 = 22/3·12/5 = 110/15·36/15= 3960/225 = 17 3/5 Good
  3. 6 2/3·1/2 = (6 2/3)/2 = 3 1/3 Good
  4. 4 1/2·2 1/6 = 9/2·13/6 = 27/6·13/6 = 9 3/4 Good
  5. 5·3 1/4 = 20/4·13/4 = 16 1/4 Doesn't Work

8 0
2 years ago
Read 2 more answers
The City Zoo has different admission prices for adults and children. When three adults and two children went to the​ zoo, the bi
Anna11 [10]

Let a and c represent, respectively, the price of an adult and a child ticket. We know that

\begin{cases}3a+2c=78.94\\2a+3c=75.86\end{cases}

Multiply the first equation by 3 and the second equation by 2 to get

\begin{cases}9a+6c=236.82\\4a+6c=151.72\end{cases}

Subtract the two equations to have

5a=85.1 \iff a=17.02

Plug this value in the first equation to get

3\cdot 17.02+2c=78.94\iff 2c=27.88\iff c=13.94

7 0
3 years ago
25-42 Differentiate the function.<br> 25. <img src="https://tex.z-dn.net/?f=f%28x%29%3Dx%5E%7B5%7D%2B5%5E%7Bx%7D" id="TexFormula
natulia [17]

Answer:

<u>y'= 5x^4 + 5^x In(5)</u>

Step-by-step explanation:

<u>Differentiate</u><u> </u><u>with </u><u>Respect</u><u> </u><u>to</u><u> </u><u>x</u>

<u>f(</u><u>x)</u><u>'</u><u>=</u><u>5</u><u>x</u><u>^</u><u>4</u><u> </u><u>+</u><u> </u><u>In(</u><u>5</u><u>^</u><u>x</u><u>)</u>

<u>f(</u><u>x)</u><u>'</u><u>=</u><u> </u><u>5</u><u>x</u><u>^</u><u>4</u><u> </u><u>+</u><u> </u><u>x </u><u>In(</u><u>5</u><u>)</u>

<u>with </u><u>respect</u><u> </u><u>to </u><u>x,</u><u> </u><u>we </u><u>have</u>

<u>y'=</u><u> </u><u>5</u><u>x</u><u>^</u><u>4</u><u> </u><u>+</u><u> </u><u>y </u><u>In(</u><u>5</u><u>)</u>

<u>y'=</u><u> </u><u>5</u><u>x</u><u>^</u><u>4</u><u> </u><u>+</u><u> </u><u>5</u><u>^</u><u>x</u><u> </u><u>In(</u><u>5</u><u>)</u>

8 0
2 years ago
What is -10=k+6 please show work thank you
Tresset [83]

Answer:

k=-16

Step-by-step explanation:

-10=k+6

subtract 6 both both sides to isolate the variable

-16=k

Happy Holidays!!

7 0
3 years ago
Read 2 more answers
Which is closer to 7?
Anna [14]

Answer:

A. 5.3

Step-by-step explanation:

While both of these numbers are close to 7, 5.3 is the closest and we can find this out with subtraction. So, 9.9 - 7 = 2.9, but 7 - 5.3 = 1.7. Which one can we determine is closer? Well, 2.9 > 1.7, so our answer must be A. 5.3!

Have a nice day and I hope this helped!

8 0
3 years ago
Read 2 more answers
Other questions:
  • Is (-2,-6) a solution of y&lt;7x+8?
    14·2 answers
  • Anyone out there to help me? Please.
    10·1 answer
  • 95% of 160<br> I need help with this question
    8·2 answers
  • URGENT 15 POINTS<br> find the measure of angle x
    7·1 answer
  • 4k-5-4k=-12-k<br>what's the answer
    8·1 answer
  • Solve the equation x2 − 6x = 15 by completing the square.
    7·1 answer
  • 4(5c+3) and 9c+7 is it equivilent
    10·2 answers
  • -2x+20y=-18 <br> 8x+10y=-18
    9·1 answer
  • Determine whether each function is even, odd, or neither.
    13·1 answer
  • Admission to the county fair is $15, and each ride ticket costs $1.75. Write an expression to describe the total cost of 8 rides
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!