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VARVARA [1.3K]
3 years ago
8

What is the constant of proportionality in the equation y =2.5xy=2.5 xy

Mathematics
2 answers:
Inessa [10]3 years ago
8 0
What is the constant of proportionality in the equation y =2.5x

2.5
kenny6666 [7]3 years ago
5 0

Answer: 2.5

Step-by-step explanation:

We know that the constant of proportionality is the ratio between two directly proportional quantities.

The equation of direct variation between two quantities x and y is given by :-

y=kx, where k is the constant of proportionality,

The given equation : - y =2.5xy

When we compare to the general direct variation equation , we get

k=2.5

hence, the constant of proportionality in the equation  2.5

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A worker is using a polyurethane spray can to seal and protect several new
FromTheMoon [43]

Answer:

7.5

Step-by-step explanation:

(15/5)-0.4-0.4-0.4-0.4-0.4-0.4-0.4-0.2=0

6 0
3 years ago
There are 25 towns in a certain country, and every pair of them is connected by a train route. How many train routes are there?
7nadin3 [17]

Answer:

13

Step-by-step explanation:

a pair=2

so 25/each pair of towns

25/2=12+1=13

5 0
3 years ago
(x^3)^9 = <br> A: x^12 <br> B: x^27 <br> C: x^3 <br> D: x^6
Grace [21]
(x^3)^9=x^{27}
3 0
3 years ago
compará y ordena de mayor a menor las siguientes cantidades 23.4 ,15/20 ,32.245,.056,4/10,50/100,8/9,.009,9/1000 y 54.45​
nignag [31]

Answer:

El orden de mayor a menor es:

54.45 ; 32.245 ; 23.4 ; 8/9 ; 15/20 ; 50/100 ; 4/10 ; 0.056 ; 9/1000

Step-by-step explanation:

El mayor número será el que tenga el mayor entero, o  si tienen el mismo entero será aquel que tenga el primer decimal mayor de izquierda a derecha,  o si tienen el mismo se observa el siguiente decimal y así sucesivamente.

Para ordenar y comparar las cantidades es conveniente en primer lugar pasar todos los números a decimales. Para convertir una fracción en un decimal, debes dividir el numerador entre el denominador.

Entonces, en este caso el valor decimal de cada cantidad (o una aproximación) es:

23.4

15/20= 0.75

32.245

0.056

4/10= 0.4

50/100= 0.5

8/9= 0.8888

0.009

9/1000= 0.009

54.45​

Entonces <u><em>el orden de mayor a menor es: </em></u>

<u><em> 54.45 ; 32.245 ; 23.4 ; 8/9 = 0.8888 ; 15/20 = 0.75 ; 50/100 = 0.5 ; 4/10 = 0.4 ; 0.056 ; 9/1000 = 0.009</em></u>

7 0
2 years ago
789,091 to the nearest ten thousand
slava [35]

i think it's 790,000 or 800,000 i hope i helped

6 0
3 years ago
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