Find the value of x if a rectangle has a perimeter of 154 cm with a length of 18 cm and a width of 2x cm

X = 59

Step-by-step explanation:

2 × 59 = 118

18 + 18 + 59 + 59 = 154

the direct variation says that:

then the equation is of the form is given by:

            where k is the constant variation.

from the given table:

consider any value of x and m(x)=y

x = 2 and m(x)=y = 3

substitute these value in [1]; we have;

divide both sides by 2 we get;

⇒

check:

put x = -1 and m(x) = -1.5

substitute in the equation:

-1.5 = -1.5                   true

therefore, the function m(x) represents a direct variation

graph of this function as shown below:

what graph

step-by-step explanation: