50.4 is 36% of what number?

Please explain step by step to get marked!

36% of 140 = 50.4

Step-by-step explanation:

36% of what number = 50.4

... is equivalent to:

36% × ? = 50.4

36% × ? = 50.4 =>

? =

50.4 ÷ 36% =

50.4 ÷ (36 ÷ 100) =

(100 × 50.4) ÷ 36 =

5,040 ÷ 36 =

140

36% of 140 = 50.4

x= -3 and

step-by-step explanation:

to find the roots of a cubic, use division or factoring to find the factors then set equal to 0. as this is a difference of cubes, it factors into

where a is the cube root of .

here   this is 27 and the cube root of 27 is 3. so we write using the form:

.

set each factor to 0 and solve for x.

x-3=0

x=3

the quadratic expression does not factor and must be solved using the quadratic formula.

where a = 1, b=3, and c=9

this cubic has two complex roots.