PART 1 40 points+brainless
i need help with these 5 questions

well, 6.2% of 4,300 can't be over half. she has made a calculation error, and the real answer is (this is where the mistake was made) 4,300 * 0.062 (not 6.2, because percents are always divided by 100 to make them into a usable number), which is equal to $266.60.

Answer:

8.94427191

Step-by-step explanation:

8^2 + y^2 = 12^2

64 + y^2 = 144

y^2 = 80

y = 8.94427191

Answer:

3500+225x

Step-by-step explanation:

x = years after 1995. 1996 would be x = 1

Answer:

b: spain

Step-by-step explanation:

ot it right on edg 2020

Answer:

Yea its B- Spain

Step-by-step explanation:

Answer:

8

Step-by-step explanation:

Answer:

-16 divided by -2 is 8

Step-by-step explanation:

When you divide a negative from a negative you get a positive

Answer:

x=3

Step-by-step explanation:

Answer:

C

Step-by-step explanation:

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

Answer:

Ok, primero Agustín camina a 5km/h.

Cuando el recorre 7km, el regresa.

El tiempo en el que sucede esto es a:

7km/5km/h = 1.4 h

La ecuación para Agustín es:

A(t) = 5km/h*t                                     para  0h ≤ t  ≤ 1.4h           (ida)

A(t) = 7km -  5km/h*(t - 1.4h)              para 1.4h ≤ t.                     (vuelta)

Hacemos lo mismo para Barbara:

7km/3km/h = 2.5h

La ecuación para ella es:

B(t) = 3km/h*t                                    para 0h ≤ t  ≤ 2.5h              (ida)

B(t) = 7km -  3km/h*(t - 2.5h)              para 2.5h ≤ t.                     (vuelta)

a)  ¿a qué distancia de la partida se encuentra con Bárbara?

Tenemos que ver cuando A(t) = B(t).

Para ello comparamos la vuelta de Agustín con la ida de Barbara.

7km -  5km/h*(t - 1.4h) = 3km/h*t  

7km - 5km/h*T + 7km = 3km/h*T

14km = 8km/h*t

14/8 h = 1.75h = t.

Entonces la posición en la que se encuentran es:

B(1.75h) = 3km/h*1.75h = 5.25km

Ellos se encuentran a 5.25 kilómetros de el punto de partida.

b)  Si en el momento del encuentro también Bárbara emprende el regreso

(Es decir, en este momento Barbara comienza a regresar).

Entonces ella para regresar al punto de inicio tiene que recorrer 5.25km con una velocidad de 3km/h.

Tb = 5.25km/3km/h = 1.75h

Barbara tarda 1.75 horas en regresar.

Agustín también tiene que recorrer 5.25 km para regresar, pero su velocidad es 5km/h.

Ta = 5.25km/5km/h = 1.05h.

La diferencia entre los tiempos es:

Tb - Ta  =1.75h - 1.05h = 0.7h

Entonces Barbara llega al punto de partida 0.7 horas después que Agustín.

Pero queremos esto en minutos.

1 hora = 60 minutos.

0.7 horas = 0.7*(60 min) = 42min

Barbara llega 42 minutos después que Agustín.

Answer:

y=9/2x -90

Step-by-step explanation: I know allLlLLLlLLLllLll...jk i dont (:

Answer:

Step-by-step explanation:

Hope this helps! <3

Answer:

12+4x=52

x=10

Step-by-step explanation:

the amount of money for each ride times x amount of rides is the 4x part. then -12 from the left and from 52. then divide 40÷4 equalling 10

Answer:

Step-by-step explanation:

50-14=36

36-24=12

12-1=11

11-0.9=10.1

The total amount of money spent will be $10.1.

Expression in maths is defined as the collection of numbers variables and functions by using signs like addition, subtraction, multiplication, and division.

Numbers (constants), variables, operations, functions, brackets, punctuation, and grouping can all be represented by mathematical symbols, which can also be used to indicate the logical syntax's order of operations and other features.

Given that you receive $50 for your birthday. You buy a book for $14.95 and a baseball cap for $24.95.

50-14=36

36-24=12

12-1=11

11-0.9 = $10.1

Therefore, the total amount of money spent will be $10.1.

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Answer:

8 11/12

Step-by-step explanation:

8 1/6 + 3/4 = ?

Let's find the equivalent fractions:

1/6 = 2/12         3/4 = 9/12

So, now let's add:

8 2/12 + 9/12 = 8 11/12

Decimal:

8 11/12 = 8.917

Answer:i dfont kngodw

Step-by-step explanation:

its probably c

Answer:

Step-by-step explanation:

Take the square root of both sides to get rid of the exponent:

x = sqrt(64) which a perfect square of just 8

Answer:

1) x=√−y+5z or x=−√−y+5z

2) g=2x-4/x

Step-by-step explanation:

explanation for first problem:

Let's solve for x.

y=−x^2+5z

Step 1: Flip the equation.

−x^2+5z=y

Step 2: Add -5z to both sides.

−x^2+5z+−5z=y+−5z

−x^2=y−5z

Step 3: Divide both sides by -1.

−x^2

−1

=

y−5z

−1

x2=−y+5z

Step 4: Take square root.

x=√−y+5z or x=−√−y+5z

explanation for problem 2:

Let's solve for g.

gx=2x−4

Step 1: Divide both sides by x.

gx/x = 2x-4/x

g=2x-4/x

====================================================

Work Shown:

y-5 = x^2

y = x^2 + 5 ... add 5 to both sides

y = 1x^2 + 5

y = 1(x-0)^2 + 5 ... x replaced with (x-0)

The equation is now in the form y = a(x-h)^2 + k

We have a = 1, h = 0, k = 5.

The vertex is (h,k) = (0,5)

The value of 'a' determines how vertically stretched or compressed the parabola is. Also, if a > 0, then the parabola opens upward; or if a < 0, then the parabola opens downward.

Answer:

B

Step-by-step explanation:

I took the test

Answer:

B

Step-by-step explanation:

i took the test and edg as well TvT

Answer:

x = 3

No Solution

Step-by-step explanation:

-2x - 3(2x - 4) = 4(x – 6) this means x would equal 3 because if you isolate the variable by dividing each side by factors that don't contain the variable.

3(x - 2) = x + 2x - 5 would have no solution because there are no values of  x  that make the equation true.

See attachment for math work and answer.

Answer:

the reicprocal is -1/6.3

Step-by-step explanation:

Answer: 0.46

Step-by-step explanation: Because ten to the second power is 100, 46 divided by 100 is 0.46

Answer:

V is 60 degree because the v is in the line of 60

Answer:

87 / 8

Step-by-step explanation:

Google tingz :P

High Hopes ^^

Barry-

Answer:

[tex]\frac{87}{8}[/tex]  

I hope this helps!

Answer:

x = 5

Step-by-step explanation:

150+25x= 55x

      -25x  -25x

150= 30x

150/30 = 30x/30

x = 5

Hope this helps!

Answer: x =5

Steps: 150 + 25x = 55x

Subtract 150 from both sides: 150 + 25x - 150 = 55x - 150

Simplify: 25x = 55x - 150

Subtract 55x from both sides: 25x - 55x = 55x - 150 - 55x

Simplify: -30x = -150

Divide both sides by -30:  -30x ÷ -30 = -150 ÷ -30

Simplify: x = 5

Plz mark brainliest:)

Answer:

I've attached the answer below.

Step-by-step explanation:

did it tell you what x and y equal

Answer:

y=(2-X)/-2

Step-by-step explanation:

isolate y by itself

move x to the right side of equation

then divide your left side by -2 to isolate y

The slope intercept form of the given line equation is y = x/2 - 1.

The given equation of a line is x-2y=2.

The slope intercept form of a straight line is one of the most common forms used to represent the equation of a line. The slope intercept formula can be used to find the equation of a line when given the slope of the straight line and the y-intercept.

The standard form of the slope intercept form is y=mx+c.

Here, the equation can be written in slope intercept form as

x-2y = 2

2y = x-2

y = x/2 - 2/2

y = x/2 - 1

Therefore, the slope intercept form of the given line equation is y = x/2 - 1.

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The sum of angles X and Z is 90°.

It is a two-dimensional figure which has three sides and the sum of the three angles is equal to 180 degrees.

We have,

Triangle XYZ.

∠Y = 90°

Now,

The sum of the three angles must be 180°.

So,

∠X + ∠Y + ∠Z = 180

∠X + ∠Z = 180 - 90

∠X + ∠Z = 90

Thus,

∠X + ∠Z = 90

Learn more about triangles here:

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Determining Angle Relationships in Right Triangles

Acute
Acute
Equal to

Step-by-step explanation:

see picture

Answer:

If nobody walked on the moon, then Neil Armstrong didn't

Step-by-step explanation:

The contrapositive flips the sign of "Neil Armstrong"  and the "moon," and also switches their position, so you will switch the hypothesis and conclusion as well