Mathematics High School

Cecilia watched 1 2 of a movie in the morning, and she watched some more at night. By the end of the day, she still had 1 3 of the movie left to watch. How much of the movie did Cecilia watch at night?

Answers

Answer 1

Answer: 1/6 of the movie.

Step-by-step explanation:

First, she watches 1/2 of the movie.

This means that if the movie lasts N minutes, the time left is:

N - (1/2)*N = (1/2)*N.

Then she watches another part of the movie, let's call it as a*N,  and after that, she has 1/3 of the movie left, we can write this situation as:

(1/2)*N - a*N = (1/3)*N

we can divide by N in both sides to get

(1/2) - a = (1/3)

(1/2) - (1/3) = a

3/6 - 2/6 = a

1/6 = a

So we can conclude that she watched 1/6 of the movie at night.

Related Questions

is x = 5 a solution to the equation 19 - x = 14?

Answers

Answer:

The answer is B

Step-by-step explanation:

If you replace x with 5 then 19-5=14

graph the rational function f(x)=4x-3/x+2

Answers

Answer:

Step-by-step explanation:

I will include a picture of the graph For you.

I need help ASAP
Does this show a function please explain

Answers

Answer:

where is the dot, I Bileve it is no.

Your father gave you $8.82 to buy a present. This covered 7/9 of the cost. How much did the present
cost?

Answers

Answer:

$6.86

Step-by-step explanation:

Answer:

$11.34

Step-by-step explanation:

8.82 x 9/7 = 11.34

This means 8.82 is 7/9 of 11.34

The present costs 11.34 dollars

How many groups of 1/2 are in 3 1/2

Answers

Answer:

7 Groups of 1/2 in 3 1/2

Spencer added 13 to the product of 224 and 16. What is the sum?

Answers

Answer:

256

Step-by-step explanation:

224+16=240

240+16=256

224 + 13 = 237

237 + 16 = 253

Answer = 253

Solve the system of equations:
y= -x + 9
y = - 3x + 8
X=

Answers

27 i believe
you would substitute y with 0 to find x then you would put 9 in for x to find y then you would go back to the first equation and put -19 in for y and then solve for x and get 27

Evaluate: 792.6 ÷ 10-4

remember it is not 10-4. it is 10 to the -4 power

Answers

Answer:

792600

Step-by-step explanation:

For this question you can add four zeroes to the back of 792.6 andmove the decimal to get you the answer, hope this helps

It's also good to know that if the exponent was positive the answer would be 0.07926

SOLUTION STEPS

10 ^−4/792.6

​

Calculate 10 to the power of −4 and get  

10000

1

​

.

10000

1

​

792.6

​

Divide 792.6 by  

10000

1

​

 by multiplying 792.6 by the reciprocal of  

10000

1

​

.

792.6×10000

Multiply 792.6 and 10000 to get 7926000.

7926000

hopefully i helped

$ 53.70 divided by two different friends

Answers

53.70 divided by 2 equals 26.85

Answer:

$26.85

Step-by-step explanation:

53.70÷2= 26.85

Please anyone help!!

Answers

Answer:

the answers -49

Step-by-step explanation:

Solve for x
Please show the steps
The answer is 10

Answers

Answer:

x = 10

Step-by-step explanation:

Since ΔCDE ~ ΔQRS, we can find the actual length of x + 8 first before finding the value of x.

Length of x + 8 = [tex]\frac{12}{20}[/tex] × 30

                         = 18

x + 8 = 18

x = 18 - 8

x = 10

The ratio in simplest form

Answers

It’s already in it’s simplest form!

Evaluate the expression for p = 4, q = 2, and r = 1.
(−p)^2q^-2

Answers

Answer: 16sqrt(2)

Explanation:

(-p)^2q^-2
= (-4)^2 x 2^-2
= 16 x sqrt(2)
= 16sqrt(2)

What type of function is represented by:
f(x)={-x+4, x<=4
{x-4, x>4
a. Greatest Integer Function
b. Step Function
c. Absolute Value Function
d. None of the Above

Answers

The function f(x) = | x - 4| is represented by the Absolute Value Function. Then the correct option is C.

What is an absolute function?

The absolute function is also known as the mode function. The value of the absolute function is always positive.

The absolute function is given as

f(x) = | x |

Then the function is given below.

[tex]f(x) = \left\{\begin{matrix}-x+4 & x\geq 4 \\\\x-4 & x < 4 \\\end{matrix}\right.[/tex]

Then the function can be written as

f(x) = | x - 4|

Then the graph of the function is given below.

Then the correct option is C.

More about the absolute function link is given below.

https://brainly.com/question/10664936

#SPJ1

What is the slope and equation of a line parallel to the x-axis passing through point (3, 7)?

Answers

Answer:

i not sure

Step-by-step explanation:

i need points

Which of the functions below is a linear function? y=x-7 y= 1 / - 7 y=x² - 7 y=1x1-7​

Answers

Answer:

y=x-7

Step-by-step explanation:

the rest are squared which means that they are parabolas. The last one has multiplication.

Simplify the expression:
(1 + 3.2d)(7)

Answers

Answer:

7+22.4d

Step-by-step explanation:

(1 + 3.2d)(7)

7+7×3.2d

Simplify

7+22.4d

Hope this helped :) (please mark brainliest)

Answer:

22.4d+7

Step-by-step explanation:

evaluate the piecewise function ​

Answers

Answer:

f(-7) = -6

f(10) = 9

Step-by-step explanation:

Because -7 is less than 0 you can use the top equation -7 + 1 to get 6

Because 10 is greater than 0 you can use the bottom equation 10 - 1 to get 9


Give 1 other example where quadratics (parabolas) might
be used by a career?

Answers

Answer:

Agriculture

Step-by-step explanation:

Quadratic equations are also used in agriculture. One of these uses is in finding out the optimal arrangement of boundaries to produce the biggest fields and pens given the materials on hand. Area is the length of a surface multiplied by its width. This turns calculations involving areas into quadratic equations.

Reverse percentages question.
during a promotion a bag of sweets contain 20% extra free.There are 24 sweets in the bag during the promotion.

How many sweets are there normally?

Answers

Answer:

20

Step-by-step explanation:

24 ÷ 1.2  = 20

A softball team is ordering pizza to eat after their tournament. They plan to order cheese pizzas that cost $6 each and four-topping pizzas that cost $10 each. They order cheese pizzas and four-topping pizzas. Which expression represents the total cost of all of the pizzas they order?

Answers

Answer:

46

Step-by-step explanation:

Well $1o each than 10×4=40 and 40 +6=46

Answer:

Expression:  6c+10f

Each blank on the coordinate plane has an address called the blank,blank

Answers

Answer:

adress, Like ( make up an adress)

Step-by-step expanation:

Answer:

Each point on the coordinate plane has an address called the ordered pair.

Step-by-step explanation:

Help me plz the real answer??!!

Answers

Answer:

(x-1)2 = -10

Step-by-step explanation:

From 20 tons to 99 tons? Increase or decrease?

Answers

Answer:

increase in weight

Step-by-step explanation:

Answer:

Increase.

Step-by-step explanation:

20 is larger than 99. if one ton is 2000 pounds then 20 tons are 40,000 pounds. So 99 times 2000 is 198,000 pounds, which is larger than 40,000.

Summary: 20 tons (40,000 pounds) < 99 tons (198,000) pounds

Quick first one gets brainliest

Answers

c is there answer                                                                                                  Step-by-step explanation: 4 is greater than 3  and because the  aligator eats the biggest number lol

#2 Rewrite this expression in standard from. (y-2) = 3(x + 1) O 3x - y = -5 0 4x + y = 2 O x + y = 5 0-3x + y = 5 Next >​

Answers

Answer:

Step-by-step explanation:

B

Answer:

It is -3x + y = 5

Step-by-step explanation:

So the answer is D

Need help??????!!!!!!!!!

Answers

Answer:

The answer for question 27 is a confusing one, but the one for question 28 is B! Hope this helps.

Step-by-step explanation:

Please Help!! And Explain how tooo! Brainliest for correct answer and best explanation!!

Answers

9514 1404 393

Answer:

  x = 23

Step-by-step explanation:

Eliminate parentheses, separate the variables and the constants, divide by the coefficient of the variable.

  7(x +4) = 9(x -2) . . . . . given

  7x +28 = 9x -18 . . . . . eliminate parentheses using the distributive property

  28 = 2x -18 . . . . . . . . . subtract 7x*

  46 = 2x . . . . . . . . . . . . add 18

  23 = x . . . . . . . . . . . . . divide by 2

The solution is x = 23.

Check

7(23+4) = 9(23-2)   ⇒   7·27 = 9·21 . . . true (=189)

__

* We choose to subtract 7x instead of 9x so that the resulting x-term has a positive coefficient.

_____

Additional comments

The properties of equality tell you that you can do anything you like to an equation, as long as you do the same thing to both sides of the equation. So, when we say "subtract 7x", we mean that value is subtracted from both sides of the equation. Subtracting a value, or adding its opposite, is a way to remove a term from a place in the equation where you don't want it.

Here, the smaller x-coefficient is on the left, so we choose that term to subtract. That leaves the remaining x-term on the right (with a positive coefficient). We don't want any constants there, so we add the opposite of that constant. (The opposite of -18 is 18, so that is what we add--to both sides.)

__

Sometimes you will be told differently. You will be told to "put that over there and change its sign" or "cross-multiply". These instructions are based on appearance. The fundamental, always-applicable rule is "do the same thing to both sides of the equation." With practice and understanding, you can begin to think in terms of these shortcut suggestions.

You are planning a skating party at a rink that charges a basic fee of
$10.00 and $6.00 per person for catered parties. You don't want to spend
more than $52.00. Write and solve an inequality to find the number of
friends you can invite.
a. 6x + 10 < 52; x< 7
6. 6x + 10 > 52; <> 7
C. 6% + 10 > 52; 2 >7
d. 6x + 10 < 52; x < 7

Answers

Answer:

y = 6.50x + 6 or 71 = 6.50x + 6

10 people are the max you can invite

Step-by-step explanation:

We have the simple equation

y = 6.50x + 6

6.50x because it it per person

6 because it is a flat one time charge

We want the max to be 71 so that will be our y

71 = 6.50x + 6

We are now going to solve for x

65 = 6.5x

x = 10

Hope it helps! (:

If the cost of a barrel of oil is $50.00, how much is the cost of one gallon of that oil? (One barrel of fuel oil contains 42 gallons.)

Answers

$1.19 gotta make answer longer

Answer:

$1.20

Step-by-step explanation:

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