Find the solution of this system of equation’s

x - 8y = 21
3x - 8y = 15

Answer:

Step-by-step explanation:

from how the sides are marked it is an equilateral triangle, to see it does not seem. assuming that it is equilateral it has 3 angles of 60 ° for which 4x - 20 = 60

4x - 20 = 60

4x = 80

x = 80 : 4

x = 20

-------------------

4 * 20 - 20 = 60°

La casa de Rodrigo está dos cuadras a la derecha de la casa de Andrés.

En esta pregunta, debemos leer el enunciado y obtener las ecuaciones equivalentes antes de obtener su solución. En este caso tenemos las siguientes dos ecuaciones:

(i) La casa de Camilo está a 4 cuadras a la derecha de la casa de Andrés.

[tex]c - a = 4[/tex] (1)

(ii) La casa de Rodrigo está a 2 cuadras a la izquierda de la casa de Camilo.

[tex]r - c = -2[/tex] (2)

Si sumamos (1) con (2), entonces obtenemos la siguiente ecuación entre las casas de Andrés y Rodrigo:

[tex]r - a = 2[/tex]

En síntesis, la casa de Rodrigo está dos cuadras a la derecha de la casa de Andrés.

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After 3.5 days, the height of the plant is 5.75 centimeters.

h = 0.5(3.5) + 4

h = 1.75 + 4

height = 5.75 cm after 3.5 days.

The height of the plant is 6.25 centimeters after 4.5 days.

6.25 = 0.5d + 4

6.25 - 4 = 0.5d - 4

2.25 = 0.5d

2.25/0.5 = 0.5d/0.5

4.5 = d

days = 4.5

Thus, the height of the plant is 6.25 centimeters after 4.5 days.

After 3.5 days, the height of the plant is 5.75 centimeters and the height of the plant is 6.25 centimeters after 4.5 days.

A straight line is a combination of endless points joined on both sides of the point.

The slope 'm' of any straight line is given by:

[tex]\rm m =\dfrac{y_2-y_1}{x_2-x_1}[/tex]

The equation of the line is:

h = 0.5d + 4

After rewriting the function:

f(x) = 0.5x + 4

Plug x = 0

f(0) = 4 cm

f(1) = 4.5 cm

f(2) = 5 cm

f(3) = 5.5 cm

f(4) = 6 cm

f(5) = 6.5 cm

Plug x = 3.5 days

f(3.5) = 5.75 cm

Plug f(x) = 6.25

6.25 = 0.5x + 4

2.25 = 0.5x

x = 4.5 days

Thus, after 3.5 days, the height of the plant is 5.75 centimeters and the height of the plant is 6.25 centimeters after 4.5 days.

Learn more about the straight line here:

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If a truck is 50% longer than the car, then its 1.5x.

200 * 1.5

= 300

So the truck is 300 inches

*50% of 200 is 100.

100+200=300* would be your answer.

this question has already been answered in Brainly.I am just giving you the answer of what someone else said.*CREDIT GOES TO:izzykissel*

This should help.

Answer:

15.8 i think

Step-by-step explanation:

Answer:

-7/9

Step-by-step explanation:

Using the slope formula

m = ( y2-y1)/(x2-x1)

   = ( 6-13)/(10-1)

    = -7/9

Answer:

2

+

2

+

6

3

8

7

6

3

8

6

3

2

7

8

4

3

2

8

4

2

6

4

7

8

4

0

Step-by-step explanation:

Answer:

so slop int form is y=mx+b

so start off by distributing the -7 to the x and -3

so that leave you with y+4=-7x+21

get it all on the same side

y-7x-17

Step-by-step explanation:

Answer:

y =  m x  +  b .

y  =  − 7 x  +  17

Step-by-step explanation:

Hope this helps!!! :))

Answer:

Point-slope form: [tex]y+2=-2x+6[/tex]

Slope intercept form: [tex]y=-2x+4[/tex]

Step-by-step explanation:

[tex]y - y_{1} = m * (x - x_{1})[/tex]

[tex]y-(-2)=-2*(x-3)\\y+2=-2x+6\\y=-2x+4[/tex]

The price of rolls of film is $2.50 and the price camera batteries is $1.50.

of Two equations can be derived from the  question:

8f + 2b = 23 equation 1

6f + 2b = 18 equation 2

Where:

f = rolls of film

b = camera batteries

In order to determine the value of f, subtract equation 2 from 1

2f = 5

Divide both sides of the equation by 2

f = 2.50

In order to determine the value of b, substitute for f in equation 1:

8(2.50) + 2b = 23

20 + 2b = 23

2b = 23 - 20

2b = 3

b = 1.50

To learn more about simultaneous equations, please check: brainly.com/question/23589883

Answer:

30a + 29b

....................

Answer:

30a + 29b is the answer

We just need to add

Answer:

$42.60

Step-by-step explanation:

(6/100)×710

= $42.60

Answer:

1/6 studets

Step-by-step explanation:

Answer: A multiple is a number that can be divided by another number a certain number of times without a remainder. A factor is one of two or more numbers that divides a given number without a remainder. Therefor, 50 could not be a multiple of 6.

Step-by-step explanation:

Answer:

3 9/10

Step-by-step explanation:

2 3/5=  2 6/10

17/10= 1 3/10

6/10+3/10=9/10+2+1=3 910

Answer:

the awnser is in fraction form

[tex] \frac{41}{8} [/tex]

Answer:

3 hours

Step-by-step explanation:

Answer:

C because it's a quadratic equation and it can be solved by factorization and completing the square method and also general formula

Ah sorry I got it wrong, dear

Answer:

slope = 2 because it goes up by 2 and across 1

10 = 2(1)+b

10=2+b

-2   -2

b = 8

y intercept = 8

equation: y = 2x+8

yes it is proportional because it has a constant rate of change or slope

Answer:

6x+3+2x+8

6x+2x+3+8

8x+11x

Answer:

she keeps 270

Step-by-step explanation:

have of 600 is 300 10 percent of 300 is 30

300-30 is 270

Answer:

B

Step-by-step explanation:

Answer: Angle x = 77 degrees

B. Alternate Angles

Step-by-step explanation:

* means multiply

y = 2 * 7 + 7 = 14 + 7 = 21 -> (7,21)

y = 2 * 0 + 7 = 0 + 7 = 7 -> (0,7)

y = 2 * -5 + 7 = -10 + 7 = -3 -> (-5,-3)

Answer:

it would be 12,000 :)

Step-by-step explanation:

Multiply 30 with 400! Hope it helps!

Answer: In decimal the answer is 4.5 but if in fraction the answer is 4 1/2

Step-by-step explanation: First we have to divide 90 and 20 will give us 4.5 or 4 1/2

90 x 20 = 4.5 or 4 1/2

Hope this help!!!

√44

2 Real Roots

Looking at the image attached, the discriminant is the value under the square root.

In the equation given:

a = 1

b = -8

c = 5

The discriminant is therefore:

√(b²- 4ac) = √(-8²- (4*1*5)) = √(64-20) = √44

√44 is a positive number. Because it is positive, there must be 2 real roots.

If it were negative, there would be 2 imaginary roots.

If it were zero, there would be 1 real root.

Answer:

Exact form = 26/9

Decimal form = 2.8

Mixed number form = 2 8/9

Step-by-step explanation:

Hope this helps

Answer:

275 miles

Step-by-step explanation:

110/2 = 55 miles

you travel 55 miles an hour

multiply that by 5 to get your answer

equals 275 miles

Hope this is helpful.

Answer:

275 miles in 5 hours

Step-by-step explanation:

110/2 is 55. 55 is 1hour so multiply 55 times 5 and thats your answer.