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Naddika [18.5K]
3 years ago
8

Someone help mamd explain

Mathematics
1 answer:
sineoko [7]3 years ago
8 0
So if 3/4 of the seats are filled, there are a few methods we can use.

The simplest method:

Just multiply 3/4 by 500, to get 1500/4, or 375.

So 375 seats are filled.

A method that can be used with harder problems and will be more efficient in those cases:

Using proportions.

You could say,

?/500 = 3/4

And then cross multiply,

500 * 3 = 4 * x (say the ? = x)

1500 = 4x

/4         /4

x = 375

So either way we get the answer, 375 seats were filled.

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Show that each property of matrices is true for all 2 by 2 matrices scalar distributive
OLga [1]
I don't know either. sorry.
8 0
3 years ago
Two lines are represented by the equations -1/2y=6x+10 and y=mx for which value of m will the lines be parallel
hjlf

Answer:

-12

Step-by-step explanation:

So to start we need to know what makes a line parallel. In an equation we know that for lines to be parallel they must have the same slope(m).

Then, we  need to know the slope-intercept form of an equation. The slope intercept form is y=mx+b where m is the slope of the line and b is the y-intercept. In this problem where can see the second equation is already in this form.

Now that we know we need to find the slope, and we know that the second equation is in slope-intercept form we're going to convert the fist equation into the correct form.

To do this, we know we need to make sure y is the only thing on the left side of the equal sign. Currently, on the left side of the equal sign we have -\frac{1}{2} y so we have to divide both sides by -\frac{1}{2} to get y=-12x -20

Now that we have it converted to slope-intercept form, we are going to look for what represents the slope or m in the equation. In this case the slope would be -12, so any line with a slope of -12 will be parallel.

8 0
3 years ago
Find the area of the sector round to the nearest hundredth.
DIA [1.3K]

Answer:

41.89 units

Step-by-step explanation:

Area of a sector: Θ/360 * (pi)(r)^2

6 0
3 years ago
LA DISTANCIA ENTRE LA TIERRA YLA LUNA ES DE 384 392 KM. LOS AUSTRONAUTAS DE LA APOLO XL SALIERON EL 16 DE JULIO DE 1969 DESDE EL
KengaRu [80]

Complete question :

la distancia entre la tierra y la luna es de 384 392 km. Los astronautas de la Apolo XL salieron el 16 de julio de 1969 desde el Centro Espacial Kennedy y al alcanzaron la orbita el 19 de julio de 1969. Suponiendo que cada dia recorrieron la misma cantidad de kilometros cuantos kilometros recorrieron por dia

Responder:

128130,66 kilometros

Explicación paso a paso:

Dado que:

Distancia entre la tierra y la luna = 384,392 km

Tiempo empleado = (19 de julio - 16 de julio) mismo año = 3 días

Velocidad = distancia / tiempo

El tiempo empleado es (3 * 24) = 72 horas

Por lo tanto,

velocidad = 384,392 / 72

= 5338,7777 kilómetros por hora

Dado que se supone que la distancia recorrida diariamente es la misma m:

El número de kilómetros recorridos por día:

5338,7777 kilómetros por hora * 24

= 128130,66 kilometros

4 0
3 years ago
Find 5x − 3y − z if x = −2, y = 2, and z = −3 <br> Select one: a. −19 b. 19 c. 13 d. −13
NeTakaya

Answer:

-13

Step-by-step explanation:

5x − 3y − z

substitute x = −2, y = 2, and z = −3

5(-2) -3(2) - (-3)

multiply

-10 -6 +3

-16 +3

-13

7 0
3 years ago
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