The sum of three numbers is 81. The second number is 4 times the first. The third
number is 3 more than the first. What are the three numbers?
(Show work pls)

x = 10 1/8 | y = 40 1/2. | z= 30 3/8

Step-by-step explanation:

x + y + z = 81

4x = y

3x = z

x + 4x + 3x = 81

8× = 81

÷8. ÷8

x = 10 1/8

4x = y

(10 1/8) (4) = y

40 1/2 = y

3x = z

(3) (10 1/8) = z

30 3/8 = z

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:

google dat sis

step-by-step explanation: