If you read 84 pages in 156. At this rate how long will it take you to read 21 pages?

Answers

Answer 1

Answer:

39

Step-by-step explanation:

you can set a proportion

84/156 = 21/x

when u solve for x u get 39


Related Questions

A new car is purchased for $31,000 and over time its value depreciates by one half
every 6.5 years. How long, to the nearest tenth of a year, would it take for the value
of the car to be $3,800?

Answers

Using an exponential function, it is found that it would take 19.68 years for the value of the car to be $3,800.

What is an exponential function?

A decaying exponential function is modeled by:

[tex]A(t) = A(0)(1 - r)^\frac{t}{n}[/tex]

In which:

A(0) is the initial value.r is the decay rate, as a decimal, after each n years.

In this problem:

The initial value is of $31,000, hence A(0) = 31000.It depreciates by one-half every 6.5 years, hence r = 0.5, n = 6.5.

Then, the equation is:

[tex]A(t) = A(0)(1 - r)^\frac{t}{n}[/tex]

[tex]A(t) = 31000(1 - 0.5)^\frac{t}{6.5}[/tex]

[tex]A(t) = 31000(0.5)^\frac{t}{6.5}[/tex]

The value would be of $3,800 at t for which A(t) = 3800, hence:

[tex]A(t) = 31000(0.5)^\frac{t}{6.5}[/tex]

[tex]3800 = 31000(0.5)^\frac{t}{6.5}[/tex]

[tex](0.5)^\frac{t}{6.5} = \frac{3800}{31000}[/tex]

[tex](0.5)^\frac{t}{6.5} = 0.12258064516[/tex]

[tex]\log{(0.5)^\frac{t}{6.5}} = \log{0.12258064516}[/tex]

[tex]\frac{t}{6.5}\log{0.5} = \log{0.12258064516}[/tex]

[tex]t = 6.5\frac{\log{0.12258064516}}{\log{0.5}}[/tex]

t = 19.68.

It would take 19.68 years for the value of the car to be $3,800.

More can be learned about exponential functions at https://brainly.com/question/25537936

Answer:

t≈19.7

Step-by-step explanation:

I do not have one, I apologize.

Miranda's heart beats 3 times every 2 secounds. At that rate, how many times does her heart beat in 1 minute?

Answers

60/2 =30

30 x 3 = 90

Answer is 90

(PLS HELPP EASYY POINTS )

A company makes piñatas for special events such as birthday parties. One of their piñatas is in the form of a cone shaped hat. How much space do they have inside the piñata for candy if the piñata is 2 feet tall and 1.5 feet wide? Round to the nearest hundredth

Answers

I don't recognize this problem, please make sure the input is complete.

A rectangular red sticker has a perimeter of 40 millimeters and an area of 64 square
millimeters. What are the dimensions of the sticker?
millimeters by millimeters
Submit

Answers

Answer:

16 x 4.

Step-by-step explanation:

What multiplies into 64?

could be 16 and 4?

16 x 2 = 32

4 x 2 = 8

32 + 8 = 40, therefore, this is correct.

100 POINTS !!! Find the axis of symmetry and the vertex of the graph of y = 6x2 − 24x + 11. x = 2; (2, −13) x = 4; (4, 11) x = −2; (−2, 83) x = −4; (−4, −11)

Answers

Let's see

[tex]\\ \rm\rightarrowtail y=6x^2-25x+11[/tex]

Graph attached

vertex(-2,-13)

Axis of symmetry

x=-2

Answer:

axis of symmetry: x = 2

vertex:  (-2, 13)

Step-by-step explanation:

Given function

[tex]\sf y=6x^2-24x+11[/tex]

Vertex form

[tex]\sf y=a(x-h)^2+k[/tex]
where (h, k) is the vertex

Expand vertex form:

[tex]\sf \implies y=ax^2-2ahx+ah^2+k[/tex]

Compare coefficients of expanded vertex form with given function:

coefficient of [tex]\sf x^2[/tex]:  

⇒ a = 6

coefficient of [tex]\sf x[/tex]:  

⇒ -2ah = -24

⇒ ah = 12

⇒ 6h = 12

⇒ h = 2

constant:

⇒ [tex]\sf ah^2+k=11[/tex]

⇒ [tex]\sf 6 \cdot 2^2+k=11[/tex]

⇒ [tex]\sf 24+k=11[/tex]

⇒ [tex]\sf k=-13[/tex]

Vertex

Vertex = (2, -13)

Axis of symmetry

Axis of symmetry is when x = h

Therefore, axis of symmetry is x = 2

Write the polar equation 0= pi/3

Answers

Answer:

1

(

π

3

)

)

Step-by-step explanation:

Explanation:

Substitute

tan

(

y

x

)

for

θ

tan

(

y

x

)

=

π

3

Obtain

y

x

on the left by using the inverse tangent on both sides:

tan

1

(

tan

(

y

x

)

)

=

tan

1

(

π

3

)

y

x

=

tan

1

(

π

3

)

Multiply both sides by x:

y

=

(

tan

1

(

π

3

)

)

x

Write the expression. Then, complete the statements.


twice the difference of a number and seven


The word "twice" means
.

The words "the difference of" indicate


.

The expression is written as

Answers

Answer:

The equation is 2(x-7)

Hope it is correct

Answer: Write the expression. Then, Complete the statements.

.

.

twice the difference of a number and seven

Step-by-step explanation:

1. multiplication by 2

2. subtraction in parentheses

3. 2(n-7)

Solve and show the answer in simplest terms 1 over 8 + 1 over 2 + 1 over 4

Answers

Answer:

7 over 8

Step-by-step explanation:

Change all the numerators over the least common denominator. 1+4+2 over 8.

answer quickly please

Answers

The line TU is tangent to the circle whose center is at point S

The measure of angle U is 84 degrees

How to determine angle U?

From the question, we understand that:

Angle STV = 84 degreesTU is tangent to circle S

This second highlight means that:

Angle STU = 90 degrees

And:

Angle STU = Angle STV + Angle VTU

This gives

90 = 84 + Angle VTU

Subtract 84 from both sides

Angle VTU =  6

The measure of angle U is then calculated as:

U + Angle VTU + Angle UVT = 180 ------ sum of angles in a triangle

This gives

U + 6 + 90= 180

Evaluate the sum

U + 96 = 180

Subtract 96 from both sides

U = 84

Hence, the measure of angle U is 84 degrees

Read more about tangents at:

https://brainly.com/question/6617153

The equation y=37.8xy=37.8x represents the number of miles, yy, that Julian can drive his car for every xx gallons of gas. Find the rate of change.

Answers

The rate of change of Julian given the equation y = 37.8x is 37.8

How to find the rate of change

The equation:

y = 37.8x

where,

y = number of miles that Julian can drivex = gallons of gas used37.8 = constant = rate of change

If x = 3 gallons

y = 37.8x

= 37.8 × 3

y = 113.4 miles

Learn more about rate of change:

https://brainly.com/question/8728504

x = y - 4
-2x + 3y= 6
Solve each system by equation

Answers

Answer:

Point form=(-6,-2)

Equation Form= x=-6, y=-2

Step-by-step explanation:

Solve for h.

2 < -19 - 7h

Answers

Answer:

h < -3

Step-by-step explanation:

2 < -19 - 7h

2 + 19 < -7h

21 < - 7h

21/7 < -h

bringing -h to the left

-h > 3

changing the sign to positive h

h < -3

solution set : {h < -3}

Hope that helps...

What is the slope of the line that is parallel to the line whose equation is 4x+y-2=0?

Answers

Answer:

4x+y-4=0

Step-by-step explanation: For an equation to be parallel to another all it needs is the same slope but a different y-intercept. So you can really other equations like 4x+y-3=0, 4x+y-5=0, 4x+y-6=0, etc. can be the answer to your problem.

Geometry shapes I need help asap

Answers

If you are trying to name them the first and 2nd one are cones, the third is a triangular pyramid and I believe the last one is called a square pyramid

The regular admission price to an amusement park is $28. You have a
coupon for 25% off the regular admission. Find the total cost of admission
to the park when the sales tax is 6% of the reduced price.

Answers

Answer:

$22.26

Step-by-step explanation:

To solve, all we need to do is 28(1-.25) to get 21, then we set up the equation 21(1+.03) and we get our total for the price.

we subtract in the first place, because it is a discount, and we add in the second one because it is a sales tax.

please rate and mark as brainlest.

Multiplication and __are inverse operations. addition subtraction O division​

Answers

Answer:

Division is the opposite of multiplication

Step-by-step explanation:

Opposites:

Addition and subtraction

multiplication and division

differentiation and integration.

A teacher of a dance class collected data and created a histogram as shown.


Which statement accurately describes the information in the graph?
A.
The data describes the ages of the teachers of an art class.
B.
The data describes the ages of the students in an art class.
C.
The data describes the ages of the students in a dance class.
D.
The data describes the ages of the teachers of a dance class.

Answers

Answer:

C

Step-by-step explanation:

this was quite the toungue twister

18. Find the surface area of the prism.​

Answers

Step-by-step explanation:

the total surface area is the sum of the individual areas on the surface.

we have

2 triangles (top and bottom)

1 front rectangle

2 rectangles in the back

the area of a triangle is

baseline × height / 2

1.7 × 0.5 / 2 = 0.425 in²

both triangles together : 2×0.425 = 0.85 in²

the area of a rectangle is

length × width

so, the front is

1.7 × 1.5 = 2.55 in²

one back rectangle is

1 × 1.5 = 1.5 in²

both back areas are 2×1.5 = 3 in²

so, the total surface area is

0.85 + 2.55 + 3 = 6.4 in²

line c has a slope of -9/2. line d is parallel to like c. what is the slope of line d?

Answers

Answer:

-9/2

Step-by-step explanation:

parallel lines have the same slope/gradient

(100 POINTS !!) Identify the vertex of the parabola.

Answers

Answer:

(-4,0)

Step-by-step explanation:

I need helppppppppppppppppppp

Answers

Answer:

See explanation

Step-by-step explanation:

look at the photo

I hope it will help you <3

Answer:

Step-by-step explanation:

*The other person that answered may be correct, but this was my way of solving the functions.

Find the area of the parallelogram

Answers

Answer:

30.42 in^2.

Step-by-step explanation:

Find the height:

sin 45 = 1/√2 = h/7.8

h = 7.8 /√2

the base = height = 7.8 /√2

Area = h * b

= (7.8 /√2)2

= 30.42.

Is the following relation a function yes or no

Answers

It's function of sinus

...........

To train for a marathon, Lily plans on running 4 miles per day for the first week and then increasing that daily distance by 1 mile each of the following weeks.

Which of these equations represent the problem.

Answers

The equation which represent the problem is given by an = 4 + 1.00(n - 1)

How to write equation?

Number if miles Lily run per day first week = 4 miles

Additional miles per day each week = 1 mile

let

n = total miles

The equation:

an = 4 + 1.00(n - 1)

When n = week 2

an = 4 + 1(n - 1)

= 4 + 1(2 - 1)

= 4 + 1(1)

= 4 + 1

= 5 miles

Learn more about equation:

https://brainly.com/question/2972832

Mrs. o'brien used a compass to draw two circles on a coordinate plane. circle a is centered at (3,-1)
and has a radius of 4 units. circle b is centered at (4, 5) and has a
radius of 3 units. select all of the
transformations that can be performed on circle a to prove that it is similar to circle b.

Answers

To prove that circle A is similar to circle B, it needs to be moved 1 unit right and 6 units up and then dilated by a scale factor of 3/4

What is transformation?

Transformation is the movement of a point from its initial location to a new location.

Types of transformation are rotation, translation, dilation and reflection.

To prove that circle A is similar to circle B, it needs to be moved 1 unit right and 6 units up and then dilated by a scale factor of 3/4

Find out more on transformation at: https://brainly.com/question/4057530

Rebecca has $128 to spend. She
spends $78 on a running shoes.
Tank tops cost $12.50 each. Write and
solve an inequality to find how many
tank tops she can buy.

Answers

Answer:

12.5x =10x+10

12.50x=x10+10

subtract 10x from both sides

2.5x=10

divide by 2.5

x=4

Question
Without looking, Luke picks necklace beads from a bag of 52 beads. Half the beads are rough. The other half are smooth. There are 13 red beads, 13 blue beads, 13 green beads, and 13 black beads.

What is the theoretical probability of selecting a blue bead? Write the probability as a fraction in simplest form.

Enter the correct answer in the boxes.

Answers

Answer:

1/4

Step-by-step explanation:

This question is asking for the probability of just picking a blue bead

It does NOT say anything about picking a smooth or rough!

This means you don't have to worry about it being smooth or rough (it is just extra information to throw you off)

So to find just picking one blue bead, you want to have the amount of blue beads divided by the total amount of beads

the amount of blue beads is 13

and the total is 52

So:

13/52 is your probability, but you want to simplify

Which comes out to

1/4

help me please!! will choose brainlyest if you get it right

Answers

The ones I highlighted are the answer

When solving, at what point do you know that your solutions are imaginary? Does x^2 +9 =0 have real or imaginary solutions? How do you know?

Answers

Answer:

Real solutions

Step-by-step explanation:

I know that because I am smart

x^2=-9
x= root of negative 9
this means the answer is imaginary because a root of a number CAN’T be negative, which makes root of negative 9 an imaginary number therefore we call it an imaginary answer

What is the measure of the
missing angle?
64°
97°
?
116°
O
o
78°
72°
80°
83°

Answers

Answer:

? = 83°

Step-by-step explanation:

the sum of the interior angles of a quadrilateral = 360°

sum the angles and equate to 360°

? + 116° + 97° + 64° = 360° , that is

? + 277° = 360° ( subtract 277° from both sides )

? = 83°

Answer:

it is an obtuse angle so that should get rid of some of the answer choices

Step-by-step explanation:

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