Help me please pass math

Answer:

y = -3.84.

Step-by-step explanation:

(0.4y - 3)/(1.5y + 9) = -7/5

Cross multiply:

2y - 15 = -10.5y - 63

12.5y =  -48

y = -3.84

Answer: It’s Elvis Presley.

Step-by-step explanation: yes :)

btw the comment section is deep <3

Answer:

24

Step-by-step explanation:

volume of the pyramid=length*width* height*1/3

Answer: y = 4km + 2km*x

Step-by-step explanation:

We know that Madelyn already cycled 4km this year, so we start at that point.

Now, each time that she goes to work, she cycles 2 km in total.

Now, if she does x trips to work, then she cycles 2km x times, this means that in total she would cycle 2km*x

if we also count the 4km she already has, we have the linear equation:

y = 4km + 2km*x

This is the equation we wanted to get.

Answer:

the third one

Step-by-step explanation:

you cannot add the hypotenuse with anything else to equal a leg if that makes sense

Answer:

35:25

Step-by-step explanation:

seventh and eighth to sixth

7th+8th : 6th

20+15 : 25

35:25

Answer:

-6

Step-by-step explanation:

3(-4) = -12

-2(-3)= 6

-12+6= -6

Answer:

-6

Step-by-step explanation:

If x = -4 and y = -3, the equation should be set up like this: 3(-4) - 2(-3). The rule is if you multiply a 1 positive number by 1 negative number, the answer will be negative.

3(-4) = -12

2(-3) = -6

Then, once you figure out the multiplication, finish up the equation by subtracting.

-12 - (-6) = -6

Answer:

n = 11

Step-by-step explanation:

The side length of a triangle are n,n-3 and 2(n-2).

The perimeter of the triangle, P = 37 units

We need to find the value of n.

Perimeter = sum of all sides

n+n-3 +2(n-2) = 37

2n-3+2n-4 = 37

4n -7 = 37

4n = 37+7

4n = 44

n = 11

So, the value of n is 11.

Answer:

The answer is C

Please brainleist I need to get to next lvl

Step-by-step explanation:

Answer:

Verduras= $100

Lacteos= $60

Menestras= $120

Frutas y verduras= $80

Limpieza= $40

Step-by-step explanation:

Presupuesto= $400

Primero determinamos la proporción a gastar en cada rubro:

Verduras= 0.25

Lacteos= 0.15

Menestras= 0.3

Frutas y verduras= 0.2

Total= 0.9

Limpieza= (1 - 0.9) = 0.1

Ahora, la cantidad de dinero:

Verduras= 0.25*400= $100

Lacteos= 0.15*400= $60

Menestras= 0.3*400= $120

Frutas y verduras= 0.2*400= $80

Limpieza= 0.1*400= $40

Total= $400

Answer:

Decay

Step-by-step explanation:

The value, y of an investment x is given by:

y = 25000(1.16)^-x

x = number of month after investment

y = value of investment after x months

The function f(y) above is an exponential usually related in the form:

y = Ar^-x

Plugging values of x into the function :

After 1 month; x = 1

y = 25000(1.16)^-1 = 21551.724

After 2 month; x = 2

y = 25000(1.16)^-2 = 18579.072

After 3 month; x = 3

y = 25000(1.16)^-3 = 16016.441

Since y is decreasing with increasing value of x, then we have a decay

Answer:

Decay

Step-by-step explanation:

Answer:

140$

Step-by-step explanation:

You can use the three rule step.

20%         ?

-------=------------

100%.    700$

Then u go 20 x 700 divided by 100 which gives you the 20% in $

Answer:

That is correct!

Step-by-step explanation:

Hope i could help!!!!!!!!

Answer:

-5

Step-by-step explanation:

28 each book 155-15=140 and then 140÷5=28

Answer:

Height and Base Area

Step-by-step explanation:

If two space figures have the same height and the same cross-sectional area at every level, then they have the same volume

- Cavaleri's Principle

Answer:

[tex]\huge\boxed{\sf Slope = \frac{7}{8} }[/tex]

Step-by-step explanation:

[tex]\sf (x_{1},y_{1}) = (-28,-31)\\\\(x_{2},y_{2}) = (36,25)[/tex]

[tex]\sf Slope = \frac{y_{2}-y_{1}}{x_{2}-x_{1}} \\\\Slope = \frac{25-(-31)}{36-(-28)} \\\\Slope = \frac{25+31}{36+28} \\\\Slope = \frac{56}{64}\\\\Slope = \frac{7}{8} \\\\\rule[225]{225}{2}[/tex]

Hope this helped!

Answer:

x = 2

Step-by-step explanation:

[tex]-2(1 - 4x) = 3x + 8[/tex]

[tex]=> -2 + 8x = 3x + 8[/tex]

Lets keep the variables in L.H.S .

[tex]=> 8x - 3x = 8 + 2[/tex]

[tex]=> 5x = 10[/tex]

[tex]=> x = \frac{10}{5} = 2[/tex]

Verification :-

Lets put x = 2 in the eqn.

In L.H.S -

[tex]-2 (1 - 4 \times 2)[/tex]

[tex]=> -2 (1 - 8)[/tex]

[tex]=> -2 \times -7[/tex]

[tex]=> 14[/tex]

In R.H.S -

[tex]3 \times 2 + 8[/tex]

[tex]=> 6 + 8[/tex]

[tex]=> 14[/tex]

∴ L.H.S. = R.H.S. (Proved)

Answer:

Step-by-step explanation:

Simplifying

(2x + -3)(x + -4) = 0

Reorder the terms:

(-3 + 2x)(x + -4) = 0

Reorder the terms:

(-3 + 2x)(-4 + x) = 0

Multiply (-3 + 2x) * (-4 + x)

(-3(-4 + x) + 2x * (-4 + x)) = 0

((-4 * -3 + x * -3) + 2x * (-4 + x)) = 0

((12 + -3x) + 2x * (-4 + x)) = 0

(12 + -3x + (-4 * 2x + x * 2x)) = 0

(12 + -3x + (-8x + 2x2)) = 0

Combine like terms: -3x + -8x = -11x

(12 + -11x + 2x2) = 0

Solving

12 + -11x + 2x2 = 0

Solving for variable 'x'.

Factor a trinomial.

(3 + -2x)(4 + -1x) = 0

Subproblem 1

Set the factor '(3 + -2x)' equal to zero and attempt to solve:

Simplifying

3 + -2x = 0

Solving

3 + -2x = 0

Move all terms containing x to the left, all other terms to the right.

Add '-3' to each side of the equation.

3 + -3 + -2x = 0 + -3

Combine like terms: 3 + -3 = 0

0 + -2x = 0 + -3

-2x = 0 + -3

Combine like terms: 0 + -3 = -3

-2x = -3

Divide each side by '-2'.

x = 1.5

Simplifying

x = 1.5

Subproblem 2

Set the factor '(4 + -1x)' equal to zero and attempt to solve:

Simplifying

4 + -1x = 0

Solving

4 + -1x = 0

Move all terms containing x to the left, all other terms to the right.

Add '-4' to each side of the equation.

4 + -4 + -1x = 0 + -4

Combine like terms: 4 + -4 = 0

0 + -1x = 0 + -4

-1x = 0 + -4

Combine like terms: 0 + -4 = -4

-1x = -4

Divide each side by '-1'.

x = 4

Simplifying

x = 4

Solution

x = {1.5, 4}

Answer:

[tex]2x^2+5x-12=0[/tex]

Step-by-step explanation:

Algebra

To expand the given equation

[tex](2x-3)(x+4)=0[/tex]

we'll use the distributive property by multiplying each term of the first binomial by each term of the second binomial as follows:

[tex]2x^2+8x-3x-12=0[/tex]

Rearranging and simplifying:

[tex]\mathbf{2x^2+5x-12=0}[/tex]

Answer:

N=(-2,2)

G=(-2,-4)

H=(6,-4)

Answer:

Step-by-step explanation:

Plot your first point at coordinates (-3,-1). Then, plot your second point at (0,-2). You will notice this graph is a negative slope, given -1/3x from the equation, and that it shifts down 2 on the y-axis, given the -2 from the equation. Hope this helps!

Answer:

8). TN = 22 units ; 9). √165

Step-by-step explanation:

The circumcenter of a triangle is the point in the plane equidistant from the three vertices of the triangle.

8). 6x - 56 = 3x - 17

3x = 39

x = 13

TN = 22 units

9). 4x - 17 = x + 10

3x = 27

x = 9

TN = 19

RT = [tex]\sqrt{TN^2 - RN^2}[/tex]

RT = [tex]\sqrt{361-196}[/tex] = √165 ≈ 12.8 units

Applying the properties of circumcenter of a triangle and the Pythagorean Theorem, the measure of each given segments are calculated as:

8. TN = 22

9. RT = 12.8

Recall:

8. Find TN

Given,

Thus,

6x - 56 = 3x - 17 (MT = TN = TP, because they are equidistant from the circumcenter, T.)

6x - 3x = 56 - 17

3x = 39

x = 13

TN = TP = 3x - 17

TN = 3x - 17

TN = 3(13) - 17

TN = 22

9. Find RT

Given,

Thus,

4x - 17 = x + 10 (TN = TP)

4x - x = 17 + 10

3x = 27

x = 9

TN = 4x - 17

TN = 4(9) - 17

TN = 19

To find RT, apply the Pythagorean Theorem

[tex]RT = \sqrt{TN^2 - RN^2}[/tex]

[tex]RT = \sqrt{19^2 - 14^2}\\\\\mathbf{RT = 12.8}[/tex]

In summary, applying the properties of circumcenter of a triangle and the Pythagorean Theorem, the measure of each given segments are calculated as:

8. TN = 22

9. RT = 12.8

Learn more about circumcenter of a triangle here:

https://brainly.com/question/8055762

Answer:

year 1 $520

year 2 $540.80

year 3 $562.43

Step-by-step explanation:

100 + 4 = 104

104/100= 1.04

500 X 1.04^of how many years

Answer:

4.969696 hours

Step-by-step explanation:

The distance traveled is shown through the following equations

Distance = velocity * time

This means that

4100=velocity*4

This means that ariplane 1 travles at 1025 km/hr

We can then subtract 200 from this to find that airplane two travels at a speed of 825 km/hr

Now we need to find how long it takes for that plane to travel 4100

So using the same equation

4100=825*time

Divison will tell us that the answer is around 4.9696 hours which is pretty much 5

Answer:

272 ft²

Step-by-step explanation:

Given that:

Width = 32 = length of base ; depth = 17 = height

Area of triangle :

A = 0.5 * base * height

A = 0.5 * 17 * 32

A = 272 ft²

Area of triangular stage = 272 ft²

Answer: The answer is B 7/4

Step-by-step explanation:

Answer:

7 13

Step-by-step explanation:

Answer:

C. 7 and D, 13 are prime.

Hope it will help :)

Answer:

I think it is the first one you can solve the system using either substitution, elimination, or graphing and the get the same answer.

Step-by-step explanation: