Need help ASAP

Equivalent or Not?
Sarah thinks that the following
expressions are equivalent:
2x + 3 = x/2 + 4
Is she correct? If so, prove that these
two expressions are equivalent. If not,
explain what errors she made.

Answers

Answer 1

Answer:

equivalent

Step-by-step explanation:

2x + 3 = x/2 + 4

2x - x/2 = 4 - 3

3x/2 = 1

x = 1 (2) / 3

x = 2/3

substitute the value of x=2/3 back into the equation:

2(2/3) + 3 = (2/3)/2 + 4

4/3 + 3 = 1/3 + 4

13/3 = 13/3  both are equal if x=2/3

Related Questions

Write the exponential equation for the given situation. A tennis tournament starts with 128 participants. Each round, half of the participants gets eliminated from the tournament

Answers

Answer:

y= 128(1-.5)^t

Step-by-step explanation:

Consider the equation −3+(−9.25)+m=0 .

Answers

Let's solve your equation step-by-step.

−3−9.25+m=0

Step 1: Simplify both sides of the equation.

−3−9.25+m=0

−3+−9.25+m=0

(m)+(−3+−9.25)=0(Combine Like Terms)

m+−12.25=0

m−12.25=0

Step 2: Add 12.25 to both sides.

m−12.25+12.25=0+12.25

m=12.25

Answer:

m=12.25

g + 10 = 3g

Translate into a sentence !! HELPPPPP

Answers

The sum of g and 10 equals the product of 3 and h

The distance between the Sun and each planet in our solar system varies because the planets travel in elliptical (oval) orbits around the Sun rather than completely circular ones.

Here is a table of the average distance and the variation in the distance for the five innermost planets in our solar system:

Average Distance and Variation
Planet Name Average Distance Variation
Mercury 36.0 million miles 7.39 million miles
Venus 67.2 million miles 0.43 million miles
Earth 93.0 million miles 1.55 million miles
Mars 142 million miles 13.2 million miles
Jupiter 484 million miles 23.2 million miles


"Average distance" means the mean distance that planet is from the sun over the course of its orbit, and "variation" means how far it varies from that mean. For example, if a planet had an average distance of 5 miles and a variation of one mile, it would have distances between 4 and 6 miles at different times.

a) Write and solve an inequality to represent the range of distances that can occur between the Sun and one of the planets from the table (your choice). Show your steps/process.

b) Why is this best represented as an inequality rather than an equation? Explain in at least 3 sentences.

Answers

Answer:

Hope this helps

Step-by-step explanation:

They describe how (1) planets move in elliptical orbits with the Sun as a focus, (2) a planet covers the same area of space in the same amount of time no matter where it is in its orbit, and (3) a planet's orbital period is proportional to the size of its orbit (its semi-major axis)

Answer:

because

Step-by-step explanation:

help with it dont know

PLZ HELP !!!!!!

28x+36y=2520 Write this in slope intercept form or graph!!

Answers

Answer:

y= -7/9 x+70

Step-by-step explanation:

28x+36y=2520

36y=-28x+2520

y= -7/9 x+70

What is the value of x in the equation x*3 = 27 512 ?

Answers

Answer:
9,170.67

Explanation:
27,512 divided by 3 = 9,170.67
X=3

New equation:
9,170.67 * 3 = 27,512
Sorry if this is wrong

In ASTU, u = 280 inches, 2T=63° and ZU=29º. Find the length of t, to the nearest
10th of an inch.

Answers

Answer:

514.6

Step-by-step explanation:

My question is, on Sunday, 77,098 fans attended a New York Jets game. The same day, 3,397 more fans attended a New York Giants game than attended the Jets game. Altogether, how many fans attended the games? Round each number to the nearest thousand to find an estimate of how many fans attended the games.

Answers

Answer:

Total number of fan = 80,495

Step-by-step explanation:

Given:

Number of fans attended = 77,098

Additional number of fans attended = 3,397

Find:

Total number of fan

Computation:

Total number of fan = Number of fans attended + Additional number of fans attended

Total number of fan = 77,098 + 3,397

Total number of fan = 80,495

The temperature of a freezer started at 18°C. After cooling for a few hours, the freezer had a temperature of
-12°C. What is the difference between the new, colder temperature and the original temperature?

Answers

Answer:

30 C

Step-by-step explanation:

How to find difference: t1 - t2

Subsitute:

18 - (-12)

Double negative signs make a positive.

18 + 12

30

when j= -8 and k= 7, the value of the expression is​

Answers

Answer: 539

Step-by-step explanation: PLATO and Edmentum

Expression will have a value of 116 for the specified values of j and k.

What is expression?

Mathematical expressions consist of at least two numbers or variables, at least one arithmetic operation, and a statement. It's possible to multiply, divide, add, or subtract with this mathematical operation.

Given an expression  -4j + 12k

where given, j = -8

and k = 7

Substituting the values in the given expression

=> -4 * -8 + 12 *7

=> 32 + 84

=> 116

Therefore, the value of expression for the given values of j and k will be 116.

Learn more about expression here:

https://brainly.com/question/23246712

#SPJ2

Complete question:

when j= -8 and k= 7, the value of the expression -4j + 12k is​_____.

is 800 cm greater than 8 cm

Answers

Answer:

100

Step-by-step explanation:

(5.31 x 103) – (2.8 x 103)

Answers

Answer:

258.53

Step-by-step explanation:

Hope This Helps!

Plz Mark Brainliest!

Answer:

I believe it is 258.53 ,,,,

HELP ME PLEASE!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! :3
I have to do what the image below says but I don't know how to write it:,)

Answers

Answer:

To write an equation in slope-intercept form, given a graph of that equation, pick two points on the line and use them to find the slope. This is the value of m in the equation. Next, find the coordinates of the y-intercept--this should be of the form (0, b). The y- coordinate is the value of b in the equation.

A jar contains 50 coins, all either 2 cents or 5 cents. The total value of the coins is $1.87.
How many 2 cents coins are there?

Answers

Answer:

there would be 21 cents

Answer:

they would be 21 cents coins

HOPE IT WILL HELP U!

A billboard on level ground is supported by a brace as shown in the accompanying diagram the measure of angle is 15° greater than twice the measure of angle b determine the measure of angle a in the measure of angle b

Answers

Answer:

has a right angle to hold the billboard upright. Since a triangle is 180, and there' s a right angle, then when you add angle A and angle B together, they should add up to 90.

Step-by-step explanation:

A  = 2B + 15

A + B = 2B+15 + B = 90

3B + 15 = 90

3B = 75, so B = 25 degrees

90 - B = A, so A = 65 degrees

HELP PLEASE!!!
I’ll give brainlest

Answers

The answer would be less than because 4.24 x 10^6 is lesser than 3.28x10^6 so the answer is

Given f(x) = -5(2x-7 )- 19, what is the
value of f(-2)?

Answers

Answer:

X=1.8

Step-by-step explanation:

f(X)=-2

-5(2x-7)-19=-2

-10x+35-19+2=0

-10x=-18

X=-18÷(-10)

X=1.8

The depth, in inches, of an object as it sinks in
the river is found by the equation d =0.5t,
where t is measured in seconds. Which best
describes the constant of proportionality?
A 0.5 second per inch
B 0.5 inch per second
C 2 inches per second
D 1 inch per 0.5 second

Answers

I got A or D hope this works

Answer:

It c.

Step-by-step explanation:

i had the same question on a quiz and all you have to do is divide per sec.

Please help I need it ASAP!!!!
Thank you
2v^2+5v-7=0

Answers

Answer:

v=1

Step-by-step explanation:

The answers is v equals to 1

Jenny wants to buy a new dress for her first school dance she barrows $25.63 from her sister to help pay for the dress then Jenny earns $16.33 helping her dad organize his home office if she gives all the earnings to her sister Jenny will still owe her sister $

Answers

Answer:

Jenny will owe her sister $9.30

Step-by-step explanation:

Subtract the money she earned from her dad from what she borrowed from her sister. $25.63-$16.33=$9.30 :)

I NEED HELP PLEASE ILL GIVE YOU BRAINLIEST T-T

Answers

Answer:

1 true

2 false

3 true

4 false

5 true

6 true

Step-by-step explanation:

write in standard form 9 times 100

Answers

Answer:

900

Step-by-step explanation:

100 x 9 = 900

cuase 1 x 9 = 9 and add two zero 900

Answer:

9*10²

Step-by-step explanation:

10*10=100

9*100=900

what is two plus two

Answers

It is 4 pretty easy but okay

A rectangular room is covered in 5 12 square feet of carpet. If the length of the room is 16 feet,
what is the width of the room?

Answers

Answer:

long

Step-by-step explanation:

14ft

123476870975 divide by 5

Answers

Answer: 24695374195

Step-by-step explanation: did you really need this?

Answers are 1.–70 2.–12 3.–74 4.–36

Answers

Answer:

3. -74

Step-by-step explanation:

[tex]12 = \frac{2 + z}{-6} \\-72 = 2+ z\\z = -74[/tex]

CAN SOME ONE HELP ME ASAP

Answers

Answer:

B

Step-by-step explanation:

1/5 is larger than 1/10

hope this helps ^^

if it did pls mark brainliest if possible

please help asap, the question is in photo

Answers

Answer:

its 1

Step-by-step explanation:

i is always going to =1 no matter what is with it

unless you are taking the square root from it

I hope this helps you! :)

Answer:  The answer is  -i

Step-by-step explanation:

They are equal hope this helps

Solve the following using the quadratic formula:


[tex]x^{2} - 9x - 45 = 0[/tex]

Answers

Answer:

AAAAAAAAAHHHHHHHHHHHHHH

Step-by-step explanation: I sorry but I can't answer this and still want to comment. See you this afternoon.

Answer:

x^2 - 9x-45=0

Step-by-step explanation:

x^2 - 9x-45=0

A math test had 26 questions. The questions were either true/false or multiple choice. The true/false questions were worth 2 points each and the multiple choice were worth 5 points each. If the test is worth 100 points, how many of each type of question are included on the test?

Answers

Answer:

True/ false type 10 questions

Multiple choice type 16 questions  

Step-by-step explanation:

Using the given formation we can make equations to solve for the number of questions of either type is to be included

let the no of true/false be =x

let the number of multiple choice to be included be = y

x + y=26  .............(1)

now making the equation of points

2x + 5y = 100 .........(2)

substitute y = 26-x from first equation in the second equation

2x + 5(26 - x ) = 100

2x - 5x + 130 = 100

3x=30

x=10

y =26-10=16

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