If you scale up the ratio on the left, what will you get for the unknown quantity on the right? 20 hours
$155
$465
?
a. 10 hours
b. 40 hours
c. 60 hours
d. 100 hours
A
B
ОО
С
OD

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:

example 2 – simplify: step 1: completely factor both the numerators and denominators of all fractions. step 2: change the division sign to a multiplication sign and flip (or reciprocate) the fraction after the division sign; essential you need to multiply by the reciprocal. step 3 : cancel or reduce the fractions.

step-by-step explanation:

the answer is 128

1st part is 64,000,000

2nd part 500,000

step-by-step explanation: