Can anyone help me with this math please I will give brainlist

Answer:

x = 3/2 or 1.5.

y = -1/2 or -0.5.

Step-by-step explanation:

Solve for one equation, one variable.

2x + 4y = 1

subtrract 4y from both sides.

2x = 1 - 4y

divide by 2 to get x by itself.

x = 1/2 - 2y

Now that we have this, we can put it into the other equation.

3x - 5y = 7

Substitute variable.

3(1/2 - 2y) - 5y = 7

Distribute the 3.

1.5 - 6y - 5y = 7

Combine terms.

-11y + 1.5 = 7

Subtract by 1.5.

-11y = 5.5

Divide by -11.

y = -1/2, or -0.5.

Now we can find x. Substitute this into the initial equation.

2x + 4y = 1

Substitute variable.

2x + 4(-1/2) = 1

Multiply.

2x + (-2) = 1

Simplify.

2x - 2 = 1

Add 2 to both sides.

2x = 3

Divide by 2.

x = 3/2, or 1.5.

x = 3/2 or 1.5.

y = -1/2 or -0.5.

Answer:

-1/2

Step-by-step explanation:

https://www.calculator.net/slope-calculator.html

That website has the best explanation ^^^^^

Answer:

[tex]-\frac{3}{2}[/tex]

Step-by-step explanation:

[tex]m=\frac{\text{rise}}{\text{run}}=\frac{y_2-y_1}{x_2-x_1}[/tex]

We are given the points (5, -3) (-1, 6).

[tex]\frac{6-(-3)}{-1-5}=\frac{9}{-6} =-\frac{9}{6}=\boxed{-\frac{3}{2}}[/tex]

Hope this helps you!

Answer:

y=lxl

Step-by-step explanation:

Answer:

y=|x|

Step-by-step explanation:

The first graph is V shaped graph centered at origin, (0,0) and the graph is not shifted or translated. So, the equation of first graph is,

Answer:

20

Step-by-step explanation:

You have to divide to find the answer so

4/1 * 5/1

Which will get you to 20.

Answer:

A, B, D

Step-by-step explanation:

Answer:

A, B, D, E

Step-by-step explanation:

1. 100 = 100%, so seeing that there are 55 boys and 45 girls, we can go ahead and turn those into percentages, making this answer correct.

2. Once again, 100 = 100%, so 17 = 17%

3. "10/55 of those" isn't implying this is the boys only, but rather everyone, so this statement is not correct.

4. 10/35 of the students who chose math are girls. We can see that on the graph.

5. 8 + 8 = 16. Those are both the same number and half and half of the boys and girls...

Hope this helped!

Answer:

the friend made more free throws

Step-by-step explanation:

17/20 = 85%

0.8 = 80

87.5% = 87.5

the friend has a bigger percentage. meaning she mad more free throws

Answer:

Symmetric

Step-by-step explanation:

The dot plot provided is almost symmetric :

Obtaining the median value :

2, 3, 5, 5, 6, 6, 6, 6, 7, 7, 7, 9

1/2 ( n + 1)

n = 12

1/2 (13) = 6.5

(6 + 6) /2

12 /2

= 6

Counting the number of points to the left and to the right of the median vlaue in the plot, we'll see that the difference in values aren't entirely different, and as such folding along the median value won't leave too much on one side than the other. Hence, the plot is symmetric.

Answer:

Step-by-step explanation:

Let the invested amount is x.

Then the interest amount is:

Correct choice is A

Answer:

C)

Step-by-step explanation:

Answer:

Approximately 3.605 units

Step-by-step explanation:

AB= B -A = [tex]\left[\begin{array}{ccc}5\\9\end{array}\right][/tex] - [tex]\left[\begin{array}{ccc}8\\0\end{array}\right][/tex] = [tex]\left[\begin{array}{ccc}-3\\9\end{array}\right][/tex]

|AB| = √x²+y² = √(-3)²+2² = √9+4 =√13 = 3.605 units

Answer:

the answer should be 360° n

Answer:

Step-by-step explanation:

Hope it helps

#CarryOnLearning

the volume is 21 cubed ft.

Answer:

down below

Step-by-step explanation:

inside of a triangle is 180 degrees

[tex]180=90+5x+2+4x-11\\180=5x+4x+90+2-11\\180=9x+81\\180-81=9x+81-81\\99=9x\\99/9=9x/9\\11=x[/tex]

now that we have our x we can find the angles

[tex]M=90\\\\K=5(11)+2\\K=57\\\\\\L=4(11)-11\\L=33[/tex]

Answer:

25

Step-by-step explanation:

Find the total by summing the heights of the bars, that is

total = 2 + 5 + 6 + 8 + 3 + 1 = 25

Answer:

If she is only driving the car for a day, she will only have to pay the one-time fee of $35 per day

35+0.75x=150

x being the number of miles

x= 153.3 miles

Answer:

7:20 A.M.

Step-by-step explanation:

5+35+10=50 mins

So she has to leave 50 mins before 8:10 A.M.

which is 7:20 A.M.

Answer:

2 out of 10

Step-by-step explanation:

Simple math

Answer:

10y+ 21 ≥ 16

Step-by-step explanation:

Answer:

2. sin=12\15 cos=9/15 tg=12/9

3. sin=3/v13 cos=2/v13 tg=3/2

4. sin=v15/4 cos=7/4 tg=v15/7

Answer:

34.8 to 1 dp

Step-by-step explanation:

18/2 = 9

Area of rectangle 18 X 9 = 162 cm^2

diameter of each circle 9

radius = 4.5

Area of a circle = πr^2

π X 4.5^2 = 63.6172512

63.6172512 X 2 (there are 2 circles) = 127.234502

162 - 127.234502 = 34.7654975

34.8 to 1dp

Answer:

hope this helps you. look it once.

That's Question 8 attached

#9

Angles that are distinct

Angles less than 180°

2 different measures

Answer:

$45000

Step-by-step explanation:

Given data

Net income =$50,400

Let the prior year income be x

12/100*x +x= 50400

0.12x+x= 50400

1.12x= 50400

x= 50400/1.12

x= $45000

Hence the prior year income is $45000

Answer:

483.84

Step-by-step explanation:

Answer:

483.84

Step-by-step explanation:

Answer:

33

Step-by-step explanation:

f(3) = 8(3) + 9 = 24 + 9 = 33

Answer:

33 is the answer.

Step-by-step explanation: