Respuesta:
2x - 0.5x = 30
x = 20
Explicación paso a paso:
Llamemos "x" a la incógnita, el número desconocido.
Cuando nos referimos al doble de un número, es lo mismo que 2x.
Cuando nos referimos a la mitad de un número, es lo mismo que 0.5 x.
Consideremos que al doble de un número (2x) se le resta su mitad 0.5x) y se obtiene 30. La ecuación resultante es:
2x - 0.5x = 30
1.5x = 30
x = 30/1.5 = 20
Answer:
5y-4x= -7 :
Slope =
= 0.800
<em>x </em>- <em>intercept = </em>
= 1.75000
<em>y - intercept = - </em>
= -1.40000 <------both of these numbers a negative
----------------------------------------------
2y+4y = 14 :
<em>y = </em>
= 2.333
----------------------------------------------
<em>Hope this helped & good luck <333</em>
Answer:
ummmmm..... ykw I cant do that but I will give out free brainly points sooo ya (on a question)
Step-by-step explanation:
{(-5,9),(2, 31), (9, 143), (11, 151),(0, 42),(5, 97)}
wlad13 [49]
The number 7 is the best prediction of the output when the input is 13.
<h3>What is the equation of a line passing through two given points in 2 dimensional plane?</h3>
Suppose the given points are (x_1, y_1) and (x_2, y_2), then the equation of the straight line joining both two points is given by

The equation of the line is found as;

Learn more about straight line equation here:
brainly.com/question/380976
#SPJ1
27.5 and 22.5 are the two numbers