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
Brilliant_brown [7]
4 years ago
8

Please help me. God bless you all

Mathematics
2 answers:
Ivahew [28]4 years ago
6 0

Answer:

x = 11, y = -1/2.

In parentheses the answer is (11, -1/2).

Step-by-step explanation:

x + 4y = 9

x - 2y = 12       Subtract to eliminate the x:

6y = -3

y = -1/2

Substituting in the first equation:

x + 4(-1/2) = 9

x - 2 = 9

x = 11.

Check the results in equation 2:

11 - 2(-1/2)

= 11 + 1

= 12

So it checks out ok.

God bless you too.

Yakvenalex [24]4 years ago
5 0

Answer:

x = 11, y=-½

Step-by-step explanation:

Simultaneous equations - subtract the first equation from the second.

x + 4y = 9

-(x - 2y = 12)

6y = -3

y = -½

Substitute y

x + 4(-½) = 9

x + -2 = 9

x = 11

You might be interested in
A house repair costs 5000 for materials and 200 per hour. Write an equation for the cost c as a function of the hours worked, t
Crank
The answer for this would be
C = 5000 + 200t
4 0
3 years ago
Un deposito de agua tiene forma de prisma rectangular con los lados de la base de 25 y 20 metros. Calcula la altura que pueda co
serious [3.7K]

Answer:

La altura del depósito para que pueda contener 1000 metros cúbicos de agua es 2 m.

Step-by-step explanation:

Para calcular el volumen de un prisma rectangular, es necesario multiplicar sus 3 dimensiones: longitud*ancho*altura. El volumen se expresa en unidades cúbicas.

En este caso, se conoce la longitud y el ancho, cuyos valores son 25 y 20 metros. A su vez, se sabe que el depósito de agua debe contener 1000 m³. Entonces, siendo:

Volumen= longitud*ancho*altura

Y reemplazando los valores se obtiene:

1000 m³= 25 m* 20 m* altura

Resolviendo:

1000 m³= 500 m²* altura

altura=\frac{1000 m^{3} }{500 m^{2} }

altura= 2 m

<u><em>La altura del depósito para que pueda contener 1000 metros cúbicos de agua es 2 m.</em></u>

7 0
3 years ago
What is the solution for x in the equation 5/3 x +4=2/3 x
777dan777 [17]

Answer:

x = - 4

Step-by-step explanation:

Given

\frac{5}{3} x + 4 = \frac{2}{3} x

Multiply through by 3 to clear the fractions

5x + 12 = 2x ( subtract 2x from both sides )

3x + 12 = 0 ( subtract 12 from both sides )

3x = - 12 ( divide both sides by 3 )

x = - 4

7 0
4 years ago
Help!!<br> I can't solve it
Rudiy27
Trick Question  their is No 1
7 0
4 years ago
Can someone help me plssss
lilavasa [31]

Answer:

To get the answer you need to understand the differences between the two in order to use common sense to get the answer  

First you’ve got to calculate the inequality which is based on the weather

then look at the multiple choice questions and see which one represents the problem the best and that is… C.

8 0
2 years ago
Read 2 more answers
Other questions:
  • What is the measure of angle S?
    5·1 answer
  • What is 30 over 75 in simplest form
    13·2 answers
  • A scale on a map shows that 2 inches = 25 miles.
    13·1 answer
  • What should the following equation be multiplied by to eliminate the decimals? 9.437x – 6.489 = 0.52 use photo for details ​
    8·1 answer
  • Evaluate 9+12÷3-1•4+2 using the correct order of operations
    8·1 answer
  • 2^l-3x=1/64<br> Solve for l
    6·1 answer
  • 11. Analyze the graph below. What equation represents the graph? 8.51
    14·2 answers
  • !!!!!! Pls help !!!!!
    13·1 answer
  • F(x+h)-f(x)
    5·1 answer
  • Arrange the steps in the correct order to solve this trigonometric equation 2sin^2 x -sinx -1 =0 for 0 degrees is less than or e
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!