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Tatiana [17]
3 years ago
11

A movie was 3 1/2 hours long. If Lily turned the movie off 1/4 of the way through, how much time did she spend watching it?

Mathematics
2 answers:
elixir [45]3 years ago
8 0

330 minutes watched

330 ÷ 4 = 82.5 mins

1 hour 22minuites and 30 seconds spent watching

Alik [6]3 years ago
8 0

Answer:

7/8 of an hour

Step-by-step explanation:

We multiply the total of the movie, 3 1/2 hours, by the fraction she watched, 1/4:

1/4(3 1/2)

To multiply these, we convert the mixed number to an improper fraction.  We multiply the whole number, 3, by the denominator, 2; this gives us 6.  We add the numerator, 1; this gives us 7.  This makes it 7/2:

1/4(7/2)

To multiply fractions, we multiply straight across:

(1*7)/(4*2) = 7/8

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Consider the system of equations.
anzhelika [568]

Answer: You can multiply the top equation by -1 to eliminate the x variable.

And the solution is (2,4/3)  in case you need it.

Step-by-step explanation:

2x + 3y = 8

2x + 6y = 12

If you multiply the upper equation or down equation by one, you will be able to eliminate the x variable.

-1( 2x + 3y) = -1(8)     New equation:   -2x -3y  = -8.

Add the new equation you got  by multiplying the top equation by -1 to the bottom equation.

Add them:     -2x -3y = -8

                      2x + 6y = 12  

                               3y = 4  

                              y = 4/3

You can now input the value for y into the one of the equations and solve for x.

-2x - 3(4/3) = -8

-2x -4 = -8  

     +4     +4

-2x = -4

x = 2

8 0
3 years ago
Which is bigger 83cm or 8 meters
Tatiana [17]

Answer: I think it is 8 meters because 83 cm in meters is 0.83 meters :)

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Plss do the working ​
djyliett [7]

Answer:

1386

Step-by-step explanation:

V=πr²*h

V=22/7*7²*9

V=1386

7 0
3 years ago
A crowd of people stood on both sides of the street to view a 4th of July Parade.
Dmitriy789 [7]

Given :

Length of parade , L = 3\ miles=3\times 5280\ miles = 15840\ miles .

Breadth of parade , B=2\times 15=30\ ft .

5 people can fit into a 25\ ft^2 area.

1 mile = 5280 ft .

To Find :

The size of the crowd.

Solution :

Area of parade ,

A=15840\times 30\ ft^2\\\\A=475200\ ft^2

Also , 5 people can fit in 25\ ft^2 area .

So , number of people fit in A is :

n = \dfrac{475200\times 5}{25}\\\\n=95040

Therefore , 95040 can fit in the parade .

Hence , this the required solution .

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3 years ago
Cheryl regularly checks her bank account balance online. Yesterday her account balance was $67.12. Today the balance is -$2.56.
AURORKA [14]
Just by simply adding the two quantities you can get the net change.  $67.12 +(addition sign because we want the net change) $2.56= $69.68.  The last number is the net change!
8 0
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