A student randomly draws a number between 1 to 30. describe the probability that the number drawn is greater than 4? the student answered "the probability that the number is less than 4 is 3/30. so the probability that the number is greater then 4 is 1 -3/30 = 30/30 -3/30 = 27/30 or 9/10
why is the solution wrong ?

a; x = 0.5

step-by-step explanation:

-10x = -5

x = 0.5

quit

step-by-step explanation:

5x + 3y = - 4

step-by-step explanation:

the equation of a line in standard form is

ax + by = c ( a is a positive integer and b, c are integers )

express the line first of all in slope- intercept form

y = mx + c ( m is the slope and c the y-intercept )

to calculate m use the gradient formula

m = ( y₂ - y₁ ) / ( x₂ - x₁ )

with (x₁, y₁ ) = (7, - 3) and (x₂, y₂ ) = (4, - 8)

m = = -

y = - x + c ← is the partial equation

to find c substitute either of the 2 points into the partial equation

using (4, - 8 ), then

- 8 = - + c ⇒ c = -

y = - x - ← in slope-intercept form

multiply all terms by 3 to eliminate the fractions

3y = - 5x - 4 ( add 5x to both sides )

5x + 3y = - 4 ← in standard form

4.28095238095 that is the answer