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NARA [144]
3 years ago
7

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
Mathematics
1 answer:
alexandr1967 [171]3 years ago
3 0

Answer:

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. 2\times 20 or 40

He bought 2 tickets for $ 9.50 each i.e. -(2\times 9.50) or -9.50-9.50

Popcorn for $ 5.00 i.e. -5

2 drinks for $ 4.25 each i.e. -(2\times 4.25) 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.

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The side of a square is 2.5 cm. Find its perimeter and area.​
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Step-by-step explanation:

\bf \: Given :

\sf \: Side  \:  of \:  the \:  square = 2.5 \: cm

\bf \: To \:  find:

\rightarrow \sf \: Perimeter

\sf\rightarrow Area

\bf \: Solution :

\rm \: First \:  w e \:  need \:  to \:  find  \: out  \: the  \: perimeter \:  o f \:  it.

So to find the Perimeter of the square, we'll use this formula :

\boxed{  \sf\longrightarrow \: Perimeter = 4 \times side}

\bf \: Step  \: 1 : \rm \:  Put \:  the  \: value  \: of   \: side \:  of \:  the  \: square :

\sf\longrightarrow \: Perimeter = (4 \times 2.5)cm

\bf \: Step\;2 : \rm Multiply :

\sf\longrightarrow \: Perimeter  = 10 \: cm

Hence, the perimeter would be 10 cm .

\rule{225pt}{2pt}

\sf \: Now,\; let's\; find  \: the  \: Area .

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\boxed{ \sf \longrightarrow \: Area = (side) {}^{2} }

Note : The answer would always be in cm².

\bf Step\;  1  :\rm Put\;  the\; value \; of\;  side \; of \; the\; square :

\sf\longrightarrow{Area} = (2.5) {}^{2}  \: cm {}^{2}

\sf\longrightarrow{Area} = (2.5 × 2.5 ) \: cm {}^{2}

\bf \: Step\;2 : \rm Multiply :

\longrightarrow\sf \: Area = 6.25 \: cm {}^{2}

Hence, the area of the square would be 6.25 cm².

<em>We are done !</em>

\rule{225pt}{2pt}

I hope this helps!

Let me know if you have any questions.

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3 years ago
A statistician selected a random sample of 125 observations from a population with a known standard deviation equal to 16 and co
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Answer:

Step-by-step explanation:

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         93%    

           1.81  (75.621 78.37904)

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441 0.64 1.6        (75.976 78.024 )

     

     

       93%    

        1.81      (75.842 78.1584)

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