Tu went to the movies. he bought 2 tickets for $ 9.50 each, popcorn for $ 5.00, and 2 drinks for $ 4.25 each. He give the clerk two $ 20.00 bills. Which expression can not be used to find the amount of changs Tu got?

A : $ 40.00 - $9.50 - $4.25 - $5.00

B : $ 40.00 - $ 9.50 - $ 9.50 - $ 5.00 - $ 4.25 - $ 4.25

C : $ 40.00 - ( 2 X $ 9.50 ) - ( 2 X $ 4.25) - $ 5.00

D : ( 2X $ 20.00) - ( 2 X $9.50) - ( 2 X $ 4.25) - $ 5.00

Option A -  $ 40.00 - $9.50 - $4.25 - $5.00                          

Step-by-step explanation:

Given : Tu went to the movies. he bought 2 tickets for $ 9.50 each, popcorn for $ 5.00, and 2 drinks for $ 4.25 each. He give the clerk two $ 20.00 bills.

To find : Which expression can not be used to find the amount of changes Tu got?

Solution :

He give the clerk two $ 20.00 bills i.e. or 40

He bought 2 tickets for $ 9.50 each i.e. or -9.50-9.50

Popcorn for $ 5.00 i.e.

2 drinks for $ 4.25 each i.e. or -4.35-4.25

The expression can not be used to find the amount of changes Tu got is

' $ 40.00 - $9.50 - $4.25 - $5.00'.

Therefore, option A is correct.

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:

1) is right

step-by-step explanation: