Please Help this is Due today and I need explaining to if you can. THANK YOU SO MUCH!

Answer:

x=4

Step-by-step explanation:

Answer:

12.8

Step-by-step explanation:

Answer:

x = 64/5

Step-by-step explanation:

34x+85=3(13x+7)

Step 1: Simplify both sides of the equation.

34x+85=3(13x+7)

34x+85=(3)(13x)+(3)(7)(Distribute)

34x+85=39x+21

Step 2: Subtract 39x from both sides.

34x+85−39x=39x+21−39x

−5x+85=21

Step 3: Subtract 85 from both sides.

−5x+85−85=21−85

−5x=−64

Step 4: Divide both sides by -5.

−5x/−5=−64/−5

x=64/5

Answer:

La edad del padre es 40 años, la edad del hijo menor es 2 años y la del hijo mayor es 6 años.

Step-by-step explanation:

Un sistema de ecuaciones lineales es un conjunto de ecuaciones lineales que tienen más de una incógnita. Las incógnitas aparecen en varias de las ecuaciones, pero no necesariamente en todas, y se relacionan mediante las ecuaciones. En otras palabras, un sistema de ecuaciones es un conjunto de dos o más ecuaciones con varias incógnitas en la que desea encontrar una solución común, es decir, encontrar el valor de cada incógnita para que se cumplan todas las ecuaciones del sistema.

En este caso debes resolver una sistema de ecuaciones, para lo cual debes en primer lugar definir las variables a utilizar:

Entonces, siendo:

Se puede expresar simbólicamente como:

que será el sistema de ecuaciones a resolver.

Para resolver se puede usar el método de sustitución, que consiste en despejar o aislar una de las incógnitas (por ejemplo,  x ) y sustituir su expresión en la otra ecuación para así ir determinando el valor de cada una de las variables.

En este caso, despejando el valor de x de la ecuación 1 se obtiene:

x= 48 -y -z Ecuación 4

Reemplazando esta expresión en la ecuación 2:

2*[(y+10) + (z+10)]= (48 -y -z+10) + 6

y aislando la variable y obtienes:

2*[y + z +10 +10]= 48 -y -z +10 +6

2*[y + z +20]= 64 -y -z

2*y + 2*z +40= 64 -y -z

2*y + y= 64 -z -2*z -40

3*y= 24 - 3*z

y= (24 - 3*z)÷ 3

y= 8 - z Ecuación 5

Reemplazando esta expresión en la ecuación 4:

x= 48 - (8 -z) -z

y resolviendo se obtiene el valor de x, es decir, la edad del padre:

x= 48 -8 +z +z

x=40

Entonces, la edad del padre es 40 años.

Ahora, reemplazando la ecuación 5 y el valor de x en la ecuación 3 se obtiene:

(40-z)= 3*(8 -z -z) +26

Resolviendo:

40 -z= 3*(8 -2*z) +26

40 -z= 3*8 - 3*2*z +26

40 -z= 24 -6*z +26

-z + 6*z= 24 + 26 - 40

5*z= 10

z= 10÷ 5

z=2

Entonces, la edad del hijo menor es 2 años.

Finalmente, reemplazando el valor de z en la ecuación 5 se obtiene:

y= 8 - 2

y= 6

Por lo que, la edad del hijo mayor es 6 años.

Answer:

y= mx + b

y= - 5/6x + b

slope is 1

y-intercept is (0,-5x/6)

Step-by-step explanation:

(0, -5) (-6, 0)

y2 -y1 =  0- -5 =  5

x2-x1  =  -6- 0=    6

-5/6

Answer:

d

Step-by-step explanation:

an equation always shows that sum is equal

in this case 1825026 will subtract 17 and the remainder will be used to find A

Answer2:

Step-by-step explanation:

1-2

Answer:

Increase the recipe by 5.

Step-by-step explanation:

1 x 20 = 20

5 X 20 = 100

(sorry for the bad explanation, I'm not very good at them ._.'')

Answer:

4/9

Step-by-step explanation:

Answer:

The simplest form of [tex]\frac{14a^2}{24a}[/tex]  is [tex]\mathbf{\frac{7a}{12}}[/tex]

Step-by-step explanation:

We need to write [tex]\frac{14a^2}{24a}[/tex] in simplest form.

We know the exponent rule: [tex]\frac{a^m}{a^n}=a^{m-n}[/tex]

Applying the rule:

[tex]\frac{14a^2}{24a} \\=\frac{14a^{2-1}}{24}\\Since \ 14 \ and \ 24 \ are \ divisible\ by \ 2 \\=\frac{7a^1}{12} \\=\frac{7a}{12}[/tex]

The simplest form of [tex]\frac{14a^2}{24a}[/tex]  is [tex]\mathbf{\frac{7a}{12}}[/tex]

Answer: The correct choice is D

Step-by-step explanation:

Answer:

The answer is D you're welcome <3

The principal is 5 years older than the teacher.

Answer:

4x+1

Step-by-step explanation:

I think, not entirely sure

Answer:

Um, no lo sé, lo siento, solo necesito los puntos

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

6.5 x 9  = 58.5

she used half a jar, so that means half of 6.5, which is 3.25. Add 58.5 and 3.25, and you get 61.75.

Also 6.5 x 9.5 = 61.75

Answer:

The price of one gallon of milk is $3.5

Step-by-step explanation:

x----> the price of one loaves of bread

y----> the price of one gallon of milk

we know that

4x+y=12.50 ----> equation A

2x+2y=11.50 ----> equation B

Solve the system of equations by graphing

Remember that the solution of the system of equations is the intersection point both graphs

The solution is the point (2.25,3.5)

see the attached figure

therefore

The price of one loaves of bread is $2.25

The price of one gallon of milk is $3.5

Answer: 8cm

Step-by-step explanation:

The Short answer: I've done this before.

Answer:

given us,

slope= 0

(x1y1)= (3,-3)

here

(y-y1) =m(x-x1)

or, (y+3)=0(x-3)

or (y+3)= x-3

or, x+y= -3-3

x+y= -6

Step-by-step explanation:

x+y= -6

Angel receives 300 votes which is 60% of total votes.

Therefore we can determine 60% = 300

The next thing to do would be to determine 1% and we can do this by dividing both sides by 60:

60% = 300

1% = 5

Then multiply both sides by 100 to determine 100% of total votes (total amount of students who voted):

1% = 5

100% = 500

Therefore 500 students voted in the election.

Answer:

500 students

Step-by-step explanation:

300=60%

300x2=600

(turning the 300 into 600 helps it make sense)

600/3=200

200x5= 1000

1000/2=500

Answer:

cladogram

Step-by-step explanation:

Answer:

cladogram

Step-by-step explanation:

Answer:

82.5000001 Close to around this ( maybe .11 off)

Explanation:

27.5 ÷ .33333333 = 82.5000001

Answer:

The answer is 82

Step-by-step explanation:

Answer:

x = 3.

Step-by-step explanation:

The parabola opens downwards.

it's x = 3 (because of the (x- 3))

Answer: 2:3

Step-by-step explanation:

minutes per day on weekdays:minutes per day on weekends

90:135

It can be written in simplier form, because both numbers can be divided by 45

90÷2=45 and 135÷45=3

The ratio is 2:3.

Answer:

y=25x

Step-by-step explanation:

Answer:

Where is the picture?

Step-by-step explanation:

Sorry, could you please give the picture so that I can help you?

Hope that I can help you in the future.

Answer:

[tex]75 {x}^{ \frac{3}{2} } {y}^{6} {z}^{ \frac{11}{2} } [/tex]

Step-by-step explanation:

First thing is to multiply. We don't need to bother with the root for now.

[tex] \sqrt{15 {x}^{2} {y}^{11} {z}^{4} } \times \sqrt{5xy {z}^{7} } = \\ \sqrt{75 {x}^{3} {y}^{12} {z}^{11} } [/tex]

All I did was multiply the numbers and added the exponents for the variables.

Now all we have to do is divide the exponents in half for the variables, nothing is needed additionally for the 75.

[tex]75 {x}^{ \frac{3}{2} } {y}^{6} {z}^{ \frac{11}{2} }[/tex]

There you go, just a few steps and you have your answer.

You can simplify further by moving the answer for the root infront of the square root so it isn't as sloppy. This would make the simplest for to be

5xyz^5 (3xy)^(1/2)

Answer:

No

Step-by-step explanation:

Given that :

Fuel tank of cruise ship hold 28,665 barrels

Capacity of fuel tanker = 5312 barrels

Can 5 fuel tankers fuel fill the cruise ship's tank?

5 * capacity of fuel tanker

5 * 5312 = 26,560 barrels

No because 28665 > 26560

Answer:

The expression for Annika is $ 4x and Chris is $ (x + 10).

Step-by-step explanation:

Given that Annika has 4 times more than Bob and Chris has $10 more than Bob. So the expressions will be :

Annika = 4 × x = 4x

Chris = 10 + x

Answer:

Annika has 4x

Chris has (x + 10)

Hope i helped

Answer:

Ingrid collected 3 times as many Food boxes as she did cans of Food.

Step-by-step explanation:

Ingrid collected 6 cans of food from the food bank.

Ingrid collected 18 boxes of food from the food bank.

In order to determine the relationship

let cans of food = x = 6

So the boxes of food will be 3x = 3*6 = 18

So the relation between Cans of food and boxes of food will be

Ingrid collected 3 times as many boxes as she did cans

Answer:

A on ed 2020

Step-by-step explanation:

Answer:

see below

Step-by-step explanation:

surface area = 2 (LW + LH + WH)

a)

where L = length = 8

          W = width = 2

           H = height = 2

plugin values into the formula:

surface area = 2 (8*2 + 8*2 + 2*2)

                     = 2 (16 + 16 + 4)

                     = 72

---

b)

where L = length = 2

          W = width = 3

           H = height = 9

plugin values into the formula:

surface area = 2 (2*3 + 2*9 + 3*9)

                     = 2 (6 + 18 + 27)

                     = 102

---

c)

surface area = 2(area of rectangular side) + 2(area of triangular side) + base area

plugin values into the formula:

surface area = 2 (2*7)  + 2( 1/2 * 7 * 6.1)  + (2*7)

                     = 28 + 42.7 + 14

                     = 84.7