Will mark brainliest please help!

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:

X=4

Step-by-step explanation:

3x-2y=8

x+y=6

multiply second equation by 2 so you can eliminate y

2(x+y)=2(6)

2x+2y=12

now add two equations together

first equation:                          3x-2y=8

modified second equation     2x+2y=12

added together eliminates y. 5x+0=20

                                                   X=4

Answer:

.

Step-by-step explanation:

Build a table of values choosing values for  

x

that you think are appropriate. It should look something like this:

You then put small crosses or dots on the graph paper that match the values for y and  

sin  ( x − 45 )

As best as you can draw a smooth free hand curve that connects the points/crosses.

Answer:

397

Step-by-step explanation:

well we know that 6*105= 630 and 2*103 = 206 so we subtract 206 from 630 giving us 397

hope this helps.

Answer:

6×105=630

Step-by-step explanation:

2×103=206 so 6×105 is greater with 424 yimes2×103.

Answer:

The answer is letter D

Step-by-step explanation:

3 x 0.30 = 0.9

Answer:

483.84

Step-by-step explanation:

Answer:

483.84

Step-by-step explanation:

Answer:

200 feet

Step-by-step explanation:

Answer:

Step-by-step explanation:

Let the invested amount is x.

Then the interest amount is:

Correct choice is A

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:

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:

x = 106.5

Step-by-step explanation:

sin 28 = opp/hyp = 50/x

0.4695 = 50/x

0.4695x = 50

x = 106.5

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:

2. 7.079

Step-by-step explanation:

The nine on the second choice is on the thousandths place. The nines on the other options are higher.

Hope this helps!

Answer:

[tex]c= \sqrt{41}[/tex]

Step-by-step explanation:

[tex]a^{2} +b^{2} =c^{2} \\4^{2} + 5^{2} = 16 + 25 = \sqrt{41} = c[/tex]

Answer:

6.4

Step-by-step explanation:

As we can see it is a right angled triangle so

perpendicular (p)= 5

base (b) = 4

hypotenuse (h) = c = ?

we know

by using Pythagoras theorem,

h² = p² + b²

or h = √(p² + b²)

c = √( 5² + 4 ² )

c = √41

c = 6.4

hope it helps :)

Answer:

yes

Step-by-step explanation:

linear means it goes in a straight line

i think all functions are linear unless they have an exponent im not sure though but this one is linear

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.

9514 1404 393

Answer:

  5.3

Step-by-step explanation:

The Pythagorean theorem applies. The square of the hypotenuse is equal to the sum of the squares of the other two sides.

  8² = x² + 6²

  64 = x² +36

  28 = x²

  √28 = x ≈ 5.3

The missing measure is 5.3.

_____

Comment on the question

The triangle isn't marked, but we must assume it is a right triangle. If it is not a right triangle, we cannot find the missing measure.

Answer:

Step-by-step explanation:

9514 1404 393

Answer:

  see attached

Step-by-step explanation:

The attached graph shows the original triangle (red) reflected over y=-2 (purple) and translated left 4 units (blue).

Answer:

This does not have to be complicated.

Just subtract 1 3/4 from 7 3/4 to get 6. Now add the 3 5/6 to that for a total of 9 5/6

Step-by-step explanation:

Answer:

Step-by-step explanation:

There are 4 terms

Coefficient of y term = 1

Constant = 8

The term without variable is the constant term.

Answer:

it is d

Step-by-step explanation:

Answer:

First you need to multiply $70 and 8%, which will equal $5.60, and then you have to add it to $70, which will give you $75.60 . Abby would need to pay 75.60 dollars.

Step-by-step explanation:

Answer:

d = 32h

Step-by-step explanation:

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:

2 out of 10

Step-by-step explanation:

Simple math

Answer:

The diver was 34 feet below sea level