b. Sara correctly answered 84% of the questions
on her math test. If there were 25 questions on
the test, how many questions did she get
correct? Write a proportion to model the
problem and answer the question.

Answers

Answer 1
21 questions right
proportion is 21/25
Answer 2

Answer:

21

Step-by-step explanation:

84% = 84/100

= 0.84

multiply 25 by 0.84 for result

0.84 x 25 = 21


Related Questions

The two lines intersected by the transversal are parallel. If m/1 =(8x) and m/2= (10x - 18) what is the value of x?
A.1
B.9
C.11
D.6

Answers

Answer:

x = 9

Step-by-step explanation:

Given:

m<1 = 8x

m<2 = (10x - 18)

Required:

Value of x

Solution:

<1 and <2 are alternate exterior angles. Alternate exterior angles are congruent. Therefore:

m<1 = m<2

8x = 10x - 18 (substitution)

Solve for x

8x - 10x = -18

-2x = -18

-2x/-2 = -18/-2

x = 9

Factor Completely 3x2-7x+2 and please show work !!

Answers

Answer:

8-7x

Step-by-step explanation:

3x2-7x+2

6-7x+2

8-7x

What is the domain of the function graph

Answers

Answer:

B. -5 ≤ x ≤ 5

Step-by-step explanation:

Domain is the set of x-values that can be inputted into function f(x).

We see that our x-values span from -5 to 5. Since both are closed dots, they are included in the domain:

[-5, 5] or -5 ≤ x ≤ 5

Answer:

A, if continuous; c, if not

continuous is if it has arrow

Step-by-step explanation:

x  is the line across

The Gordon family plans to buy a TV. One TV has a purchase price of $330 and an estimated yearly operating cost of $14. The other has a purchase price of $369 and an estimated yearly operating cost of $9. Which TV should the Gordons buy if they plan to keep it for 8 years? Use rational functions to help justify your answer

Answers

Answer:

Step-by-step explanation:

They should purchase the $369 one with the $9 plan.

330 + (14x8) =442

369+ (9x8) = 441

Hope this helps!

Answer:

rational functions that model the average annual cost of each television if it is owned for x years, such as f(x)= (330+14x)/x and

g(x)= (369+9x)/x

calculation proving that over 8 years, the annual cost for the $330 television is $55.25; for the $369 television, it is $55.13

statement that the Gordons should buy the $369 television because it is less expensive overall

Step-by-step explanation:

edge 2022

The area of a rectangle is 18xcm2
If the length is twice the width find the demension of the rectangle

Answers

Answer:

Length 6 width 3

Step-by-step explanation:

3×6=18

3 is double 6

What number is 60% of 80?
Input only whole numbers.
Numerical Answers Expected!
Answer for Blank 1:

Answers

Answer: 48

.................

48 .............................

What is the factored form of t^6-p^3

Answers

Answer:

-(p - t^2) (p^2 + p t^2 + t^4)

what is the area of the figure below

Answers

There is no picture

In ΔJKL, \text{m}\angle J = (8x+6)^{\circ}m∠J=(8x+6)

, \text{m}\angle K = (2x+2)^{\circ}m∠K=(2x+2)

, and \text{m}\angle L = (4x+4)^{\circ}m∠L=(4x+4)

. Find \text{m}\angle L.m∠L.

Answers

Answer:

The measure of angle L is 52

Step-by-step explanation:

Mathematically, in a triangle, the sum of the angles equal 180

So in this case;

J + K + L = 180

So therefore;

8x + 6 + 2x + 2 + 4x + 4 = 180

8x + 2x + 4x + 6 + 2 + 4 = 180

14x + 12 = 180

14x = 180 -12

14x = 168

x = 168/14

x = 12

So to get the measure of angel L, we simply substitute the value x in the equation for L

From the question, L = 4x + 4

So therefore L = 4(12) + 4 = 48 + 4 = 52

Given the equation 1/3p-5/6=2/3, select the equivalent expression(s).

Answers

Answer:

?

Step-by-step explanation:

Help I need it I plz

Answers

Answer:

A. 1.25

Step-by-step explanation:

Which one doesn’t belong

Answers

Answer:

Top left

Step-by-step explanation:

It's the only one that has parentheses. All the others don't have them.

I hope this helps!

Answer:

2^-4  the one in the bottom left corner.

Step-by-step explanation:

(-2)^4 = 16

-2^4 = 16

2^-4 = some decimal

4^1/2 = 16

Can a person live a million days?

Answers

Answer:no

Step-by-step explanation:that’s just NOT POSIBBLE

Answer:

Um no.

Step-by-step explanation:

They’d be over 2,000 years old

Add 4x^2+6x+9 to 2x^2+3x-9

Answers

Answer:  6x^2 + 9x

.................................


18
o
t
x
2 I got that
+
4
x
2
+
9
x

9

Each of the 25 students in Mr Walker's class sold 16 raffle tickets. If each ticket costs $15 how much money did Mr Walker's students raise?​

Answers

Answer: $6000

Hope this helps!-xoxo

Use the properties of exponents to simplify the expression

Answers

Answer:

y^6/x^2

Step-by-step explanation:

Help this answer is confusing.

Answers

Answer:

it's the first one 49.96÷5

Answer: 49.96/5 is 9.992, 9.97/3 is 3.32333333333 , 54.6/11 is 4.96363636364 , and 0.6/6 is 0.1

Step-by-step explanation: I believe it has to be either a or d since they are both are near 10 I believe.

Which of the following is not a function?
A{ (0,1), (1,2), (2,3), (3,4)}
B.{(0,2), (1,3), (4,3), (1,2)}
C.{(1,3), (4,2), (2,0), (3,4)}
D.{(1,2), (2,2), (3,2), (4,2)}

Answers

Answer:

  B.  {(0,2), (1,3), (4,3), (1,2)}

Step-by-step explanation:

A relation is not a function if the same input value maps to multiple output values. Essentially, if any x is repeated, it is not a function.

The second set, {(0,2), (1,3), (4,3), (1,2)}, has x-values of 0, 1, 4, 1, so 1 is repeated. It is not a function.

the table represents a function. which could be a missing value for x?

Answers

Answer:

8

Step-by-step explanation:

f(x) = x (x^2)

What is the value of the expression?
8 1/2 - 2 + 4 3/4

Answers

Answer:

I think the answer is 45/4 i'm so sorry if the answer is wrong

Step-by-step explanation:

Answer:

11 1/4

Step-by-step explanation:

Someone help me with math please.

Answers

Answer:

hypotenuse² = b² + h²

x² = b² + h²

=> x² = 6² + 4²

=> x² = 36 + 16

=> x² = 52

=> x = √52

=> x = 7.21

Find the coordinates of the midpoint of segment LP with endpoints: L(4, 2) and P(0, 2)

Answers

Step-by-step explanation:

here,

midpoint of line segment LP

=( X1 +X2÷2 , Y1 + Y2÷ 2)

=(4+0÷2 , 2+2 ÷2)

=(4÷2 ,4÷2)

=(2,2)

Therefore the midpoint of segment LP with L (4,2) and P (0,2) = (2 ,2).


what is the property that the following statement illustrates.
83 +4 = 4 + 83

Answers

Answer:

Commutative Property

Step-by-step explanation:

Hope this helps! <3

( Pic Below to help with more of these questions* )

6 The temperature at Wonder Lake is 12°F. During a storm,
the temperature changes by -26°F. What is the temperature
after the storm? Show your work.
SOLUTION
158
LESSON 8 Add with Negative Numbers
OC

Answers

Answer:

-14 F

Step-by-step explanation:

Start at 12

Add -26

12 + -26

Rewriting

12 - 26

Taking the larger number minus the smaller number and  then make it negative

26 -12 = 14

-14

The new temperature is -14

First you would take 26 and subtract 12 a second you would get -14 for your answer and finally you would put that in the answer box

What is the answer to this?

Answers

Answer:

27

Step-by-step explanation:

90-63

Answer:

27

Step-by-step explanation:

coplimentary angles mean add up to 90 so

90-63=27

528+787 using standard algorithm

Answers

Answer: 1,315

528

+787

---------

1315

Answer: 1315

Step-by-step explanation:

1 1

528

+787

1315

Which statement describes the Richter scale?

It cannot account for fault movement during an earthquake.
It measures large earthquakes far from the seismograph.
It estimates the total energy released from an earthquake.
It increases in magnitude as amount of damage increases

Answers

Answer:

It increases the magnitude as amount of damage increases

Step-by-step explanation:

Hello, there! My name is Alice and I am here to help you today!

The answer is D)

Here are some notes that will help you with the whole lesson!

Earthquake: Sudden or violent shaking of the ground.

Epicenter: The point of the Earth's surface vertically above the focus of an Earthquake.

Focus: The focus is the place inside the Earth's crust where an earthquake originates.

Magnitude: The great size or extent of something.

Seismic wave: An elastic wave in the Earth.

Seismograph: An instrument that measures and records details of the Earthquake.

The Seismograph is used to find the Focus

Plate movement ⇒ Causes stress.

Stress ⇒ Increasing along faults.

Excess stress ⇒ Leads to rock breaking and an earthquake begins.

Earthquakes begin in the Lithosphere, usually 100km below the surface.

• Earthquakes have two centers

• The focus is the area beneath the surface where rocks beneath break under stress. It is the starting point of an Earthquake

• The Epicenter is the point on the surface directly above the focus

Earthquakes are caused by plate movement. And they begin at the focus.

• Waves carry energy as they travel

• The waves produced by an Earthquake are called Seismic waves

        Seismic waves are classified into three categories

                         

                           « P waves (primary) »

• Arrive first, travel fastest

• Compressed and expand the ground like an accordion

• Travel threw solids and liquids

                   

                      « S waves (secondary) »

• Arrive after P waves

• Vibrate from side to side and up and down

• Shake structures violently when they reach the surface

• Travel ONLY threw solids

                     

                             « Surface waves »

• Travel ONLY on the surface

• Were P and S waves move

• Move slowly

• Can produce dramatic ground movement

• May make the ground roll

The Mercalli scale rates an earthquake according to how much damage it causes. And has 12 levels of intensity.

The Mercalli scale rates earthquakes based on the amount of damage they cause.

The Richter scale measures magnitude based on the size of seismic waves.

• Magnitude is determined by measures based on the size of seismic waves.

• Seismic waves are measured by a seismograph

• This scale is good for measuring small, nearby earthquakes

The moment magnitude scale estimates the total energy released by an earthquake.

• Useful for earthquakes of all sizes and distances

• Data collected with seismographs

• Shows what kind of waves were produced and their strength

The Moment of magnitude scale takes into account the movement of rocks along fault lines.

The Sumatra earthquake of 2004 is the third strongest earthquake ever recorded.

• Measured 9.1-9.3 on the Moment magnitude scale

• Measured at the maximum intensity on the Mercalli scale

• Lasted approximately 9 minutes, the longest duration ever measured

• Triggers a massive tsunami and killed  approximately 250,000 people

Geologists use Sisemic waves to locate an earthquake's Epicenter.

• Use Siesmograph  to measure the difference between the arrival of P and S waves

• Compare data to seismographs from around the world

Earthquakes are caused by stress along faults due to plate movement.

«Traveling Of Energy»

• Seismic waves travel in all directions

• Three types of waves:

• P waves (primary)

• S waves (secondary)

• Surface waves

«Measuring Earthquake   Energy»

• Mercalli scale

• Richter scale

• Moment magnitude scale

«Locating The Epicenter»

• Distance of epicenter measured from at least three seismographs

• Location of the epicenter is where three measurements overlap

Have a great day!

I’ll give you so many point SOOOO MANY POINTS HELP IM GONNA FAIL MY CLASS

Answers

Answer:

502

Step-by-step explanation:

4 times 125.50 equals 502

234 divided by 33 I really need this answer doing school work

Answers

Answer:

234÷33= 7.09090909 or just round to 7.1

7x10^15 grains of sand in world

Answers

Answer:

7.0e15

Step-by-step explanation:

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