Mathematics College

Lara took a total of 10 pages of notes during 2 hours of class. After attending 9 hours of
class, how many total pages of notes will Lara have in her notebook? Solve using unit rates.
Fast please i need it asap thanks

Answers

Answer 1

Answer:

45 pages

Step-by-step explanation:

The unit rate is  the number of pages divided by the unit of time

10 pages /2 hours

5 pages per hour

To find the total number of pages of notes take, multiply the unit rate by the total amount of time

We have 9 hours

5 pages per hour * 9 hours

45 pages

Answer 2

Answer:

take x to be the no. of pages for 9 hours

10 pages                      2 hours

x pages                         9 hours

Cross multiplication:

90 = 2x

x = 90/2

x = 45

Lara will cmplte 45 pages in 9 hours.

Related Questions

the question is “A ____ followed by a ____.”

Answers

Answer:

confused

Step-by-step explanation:

Answer: A man followed by a cop

A 14-foot ladder is set up 4 feet from the base of a building. How far up the building does the ladder reach? Round your answer to the nearest tenth of a foot.
A 13.4 feet
B 14.6 feet
C 16.5 feet
D 18.0 feet

Answers

Answer:

A

Step-by-step explanation:

i really need help on this one.

Answers

The answer is:

a = 20/3 = 6 2/3

please help me with this and show work thank you!!

Answers

[tex]21x^{2} -16x^{2} = 5x^{2} \\-18x-9x=-27x\\4-8=-4\\25x^{3} +5x^{2} -27x-4\\A[/tex]

In 2010, the average finishing time for marathons across the US was approximately 278 minutes, with a standard deviation of approximately 63 minutes. What finishing time defines the fastest 7.93% of runners?

Answers

Answer:

336 minutes

Step-by-step explanation:

Mean finishing time: 278 minutes

Standard Deviation: 63 minutes

Confidence interval: [278 - 63] , [278 + 63]  = [215 , 341] minutes

What finishing time defines the fastest 7.93% of runners?

This means the 7.93% of time closest to the upper limit of 341 minutes

341 - 215  ≡  63 × 2  = 126

7.93% of 126  = 0.0793 × 126  = 9.9918

341 - 9.9918 = 331.0082

Hence the finishing time that defines the fastest 7.93% of runners has an interval of [331 , 341] minutes with a mean or average of 336.0041 ≅ 336 minutes

I WILL GIVE BRAINLEIST PLEASE HELP



The height of a golf ball hit in the air is modeled by the equation ℎ(t)=−16t2 + 48t, where ℎ(t) represents

the height, in feet, and t represents the number of seconds that have passed since the ball was hit.

Complete the statement about the function for ℎ(2)=32

If ℎ(2)=32 , then the ball reached a height of _________ feet after _________ seconds.

Answers

Answer:

16 feet, 2 seconds

Step-by-step explanation:

as the problem state that h= height and t = time, to get the h you need to isolate it so we divide it by 2 and we get 16 feet. The 2 are already in the problem h(2).

Find perimeter of the figure :)

Answers

Answer:

39 feet.

Perimeter is the distance around a shape. To solve for it, we must add all the values together.

[tex]3 + 8 + 7 + 11 + 10 = 39[/tex]

If you need me to explain more, let me know.

Red = R, Orange = O, Yellow = Y, etc; ALL CAPS

Answers

Answer:

I don't know what your asking, but if your asking about colors here you go.

Step-by-step explanation:

Green = G

Blue = B

Black = BL

Yellow = Y

Orange = O

Grey = GR

Purple = P

Red = R

Pink = PI

Thats all that I can think of right now

Need help with number 13

Answers

Answer:

x = 19

Step-by-step explanation:

the question tells you that the angle CBD is 90°.

so, that means that angle DBE and angle CBE add up to 90.

using this, you can make the following equation:

2x - 1 + 5x - 42 = 90

2x + 5x + -43 = 90

7x - 43 = 90

add 43 to both sides

7x = 90 + 43

7x = 133

x = 133/7

x = 19

Students reported practicing violin during the last semester for 45, 38, 52, 58, and 42 hours. What is the mean absolute deviation for the number of hours students practiced the violin? Round to the nearest tenth.What is the mean absolute deviation for the number of hours students practiced the violin? Round to the nearest tenth.

Answers

Answer:

A: 6.4

Step-by-step explanation:

edg2020

6.4 is correct

https://brainly.com/question/22127610

funne

Please help if you know how to do this, thanks

Answers

9514 1404 393

Answer:

  1.  see the first attachment for a graph; quadrants I, II, III; vertex (-3, -4); x-intercepts -5, -1; graph is dashed line, shaded inside the parabola, which opens up

  2.  see the second attachment for a graph; all quadrants; vertex (1, 2); x-intercepts 1±√2; graph is a solid line, shaded outside the parabola, which opens down; (-7, 0) is a solution

Step-by-step explanation:

1. The boundary expression is in vertex form, so the vertex can be read directly.

  y = (x -h)^2 +k . . . . . . parabola with vertex (h, k)

  y > (x +3)^2 -4 . . . . .  (h, k) = (-3, -4)

The leading coefficient is +1, a positive number, so the parabola opens up. The relation is y > ( ), so values of y above the dashed line will be shaded. Those values are inside the parabola. The points (0, 0) and (-7, 0) are not in the shaded area, so are not solutions.

__

2. Again, the boundary expression is in vertex form, so the vertex can be read directly.

  y ≥ -(x -1)^2 +2 . . . . . (h, k) = (1, 2)

The x-intercepts are found by solving for x when y=0:

  0 = -(x -1)^2 +2

  x -1 = ±√2

  x = 1±√2

The leading coefficient is -1, so the parabola opens downward. The relation is y ≥ ( ), so y-values above the solid line will be shaded. Those values are outside the parabola. Point (0, 0) is not a solution. Point (-7, 0) is a solution.

_____

Additional comment

As with the graph of any inequality, the boundary line is solid when the "or equal to" case is part of the relation. If the relation is strictly "greater than" or "less than", then the boundary line is dashed.

1.) x – 12.06 = -9.4
plz help

Answers

Here’s a step by step so you know for next time!

To easily find it you would simply switch around the equation, so instead of doing x-12.06=-9.4 just do -9.4+12.06 (the opposite of subtracting) which equals 2.66. And just to make sure I was correct I plugged it in, and the equation 2.66-12.06=-9.4 is correct.

Answer: x= 2.66

Solve for x and explain how you use inverse operations to find your answer:
8x=2

Answers

0.25 , because you divide 2 by 8 so that’s how you are using the inverse operation

The area of a square is given by A= s2 where s is the length of each side of the square if the area of a square room is 64 square meters what is the length of 1 side of the room in meters

Answers

9514 1404 393

Answer:

  8 m

Step-by-step explanation:

Using the given information, we know that ...

  64 m^2 = A = s^2

  (8 m)^2 = s^2

  8 m = s

The length of one side of the room is 8 meters.

Name 2 lines inthe diagram

Answers

Which diagram? You might need to re-ask this question. It’s missing details.

the sum of the measures of the angles of the interior angles of a triangle is 180. Write and solve an equation to find the value of the variable

Answers

Answer:

look on khan academy

Step-by-step explanation:

Need Help please i will mark brainliest when it lets me

Answers

Answer:it’s the second one

Step-by-step explanation:

Answer:

the 2nd one

Step-by-step explanation:

I asked my brother and he said it was that one

There must be at least 20 club members present in order to hold a meeting.​

Answers

Answer:

Are you trying to create a meeting?

Step-by-step explanation:

If u are i can help? :)

x (number of members) is larger or equal to 20

The fee to rent a hall for a wedding is $1450 plus $50 per hour. For how many hours can it be rented forband stay within a budget of $2100?

Answers

2,100-1,450= 650
650➗50= 13
you can rent 13 hours.

find the area of a circle with the following dimension, diameter=20cm

Answers

Answer:

314.16cm²

Step-by-step explanation:

Find the volume of a right circular cone that has a height of 13 in and a base with a
circumference of 5.1 in. Round your answer to the nearest tenth of a cubic inch.

Answers

Answer:

Step-by-step explanation:

the formula for finding  the volume of a cone would be V= 3.14 r sqaured * h/3

so plug that in and it would be   3.14(5.1) sqaured * 13/3

3.14 is the formula of pie which is in the formula for finding the volume of

5.1*5.1=  26.01

3.14* 26.01= 81.67    

13/3= 4.34

81.67* 4.34= 354.45

The volume of a right circular cone that has a height of 13 in and a base with a circumference of 5.1 inches is 8.97824.

Calculation of the volume of right circular cone:

Since

We know that

Volume = [tex]\pi r^2 \frac{h}{3}[/tex]

Since the circumference is 5.1 inches

So here the radius be like

Circumference = [tex]2\pi r[/tex]

5.1 = 2(3.14) r

r = 0.8121

Now the volume should be

[tex]= 3.14 \times (0.8121)^2 \frac{13}{3}[/tex]

= 8.97824

Hence, The volume of a right circular cone that has a height of 13 in and a base with a circumference of 5.1 inches is 8.97824.

Learn more about volume here: https://brainly.com/question/24420115

y=-6x^2+100x-180
what are the zeros in this function? what do the zeros mean in context​

Answers

Answer:

If soccer balls are sold for $2.05 or $14.61 each, the store will break even but will not make a profit.

Step-by-step explanation:

Evaluate the function: f(n) = n + 4
Find: f(-9)
Evaluate the function

Answers

For this you just substitute -9 for n.

(-9)+4= -5

F(-9)=-5

(5+3) • 5-3/8-3•2 help me

Answers

Answer:

79.25

Step-by-step explanation:

8*5=40

40-3/8=39.625

39.625*2=79.25

Hope this helps

Here you go 8 is the answer and in blue I showed you how I got certain numbers

18.75 divided by 0.70

Answers

Answer:

26.79 (rounded to the nearest hundredth)

PLEASE HELP. I HAVE LIMITED TIME.

5. X to the fourth power plus the product of six and the square root of nine.
6. Fifteen plus eight cubed minus the sum of fourteen and six squared.
7. The product of three and fifteen minus nine plus the quotient of fifteen and three.
8. The product of seventeen and y, plus the square root of eighty-one minus the product of six and x minus four.

Answers

i think this is it, but i’m not sure about the last one

Prove: a^2+b^2/2 ≥ab

Answers

We know that the square of any number is greater than or equal to zero ;

So if have a number like x :

[tex]( {x})^{2} \geqslant 0[/tex]

_________________________________

Now we have a number which is

( a - b ) ;

So we have :

[tex]( {a - b})^{2} \geqslant 0 [/tex]

##############################

Reminder :

[tex]( {a - b})^{2} = {a}^{2} - 2ab + {b}^{2} [/tex]

##############################

So we have :

[tex] {a}^{2} - 2ab + {b}^{2} \geqslant 0 [/tex]

Both sides plus 2ab :

[tex] {a}^{2} + {b}^{2} \geqslant 2ab [/tex]

Divided both sides by 2 :

[tex] \frac{ {a}^{2} + {b}^{2} }{2} \geqslant ab \\ [/tex]

_________________________________

And we're done.

Thanks for watching buddy good luck.

♥️♥️♥️♥️♥️

−2^6−(6)^2
uh its making me add more words so just ignore this

Answers

Answer:

-100

Step-by-step explanation:

we nuh care

-100 gang gang I think at least

A teacher can spend as much as

$125.00 to take students to a movie.
​
​A movie theater charges a

$10.00 group fee and

$5.50 per ticket.
​
​Which of the following inequalities represents the problem and could ​be solved to find the maximum number of students,

x, who could ​attend the movie?

Answers

1. Subtract the group fee ($10) leaving $115
2. Make the equation 115 divided by 5.5 =X
Your answer would be 20.9 and round that down to 20 students.

The maximum number of students, x, who could ​attend the movie are,

⇒ x ≈ 21

What is Inequality?

A relation by which we can compare two or more mathematical expression is called an inequality.

Given that;

A teacher can spend as much as $125.00 to take students to a movie.

And, ​A movie theater charges a $10.00 group fee and $5.50 per ticket.

Let maximum number of students, x, who could ​attend the movie = x

Hence, We can formulate;

5.50x + 10 ≤ 125

Solve for x;

5.50x ≤ 125 - 10

5.50x ≤ 115

x ≤ 115 / 5.50

x ≤ 20.90

x ≈ 21

Thus, The maximum number of students, x, who could ​attend the movie are,

⇒ x ≈ 21

Learn more about the inequality visit:

https://brainly.com/question/25944814

#SPJ6

Which expression has a value of 3/4

Answers

What are the expressions?
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