During the first month of sales, a company sold 1,300,000
units of a certain type of smartphone. during the same
month, 15% of the units sold were returned. if sales and
the return rate remain the same for each of the next 5
months, about how many units of this smartphone will be
returned to the company during this 6-month period?
a) 195,000
b) 975,000
c) 1,170,000
d) 6,630,000

d (5 x (-20)) * (100 x (0.7))

step-by-step explanation:

5÷1/100 * -.7 *-20

copy dot flip

5*100 * -.7 *-20

rearrange

5*-20   * 100 *-.7

-100   *-70

7000

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:

where r the answers

step-by-step explanation: