Mathematics High School

Solve.
2x + 3 = 2x - 3

Answers

Answer 1

Step-by-step explanation:

Respuesta:13

Answer 2

Answer:

It is incorrect :( :(

Step-by-step explanation:

2x + 3 = 2x - 3

or, 2x - 2x = -3-3

or, 0 = -6

Related Questions

Find the equation of the line that contains the point (5. - 4) and is perpendicular
to the line x = 4. Write the line in slope-intercept form, if possible. Graph the lines.

Answers

Answer: y=-4

Rotate it

Good Luck!

There are 5 lunch choices in a hospital cafeteria: Salad, Pizza, Spaghetti, Sub Sandwiches and Soup. The percentage of people that chose Pizza is 25%. If 50 people chose pizza, what is the total number of people at ate lunch?

Answers

Answer:

75

Step-by-step explanation:

M is the midpoint of AB. If the coordinates of point A are (7,4) and the coordinates of B are (1,2), what are the cooridnates of M?

Answers

Answer:

M(4, 3 )

Step-by-step explanation:

Given endpoints (x₁, y₁ ) and (x₂, y₂ ) then the midpoint is

( [tex]\frac{x_{1}+x_{2} }{2}[/tex] , [tex]\frac{y_{1}+y_{2} }{2}[/tex] )

Here (x₁, y₁ ) = A(7, 4) and (x₂, y₂ ) = B(1, 2) , thus

M  = ([tex]\frac{7+1}{2}[/tex], [tex]\frac{4+2}{2}[/tex] ) = ( [tex]\frac{8}{2}[/tex], [tex]\frac{6}{2}[/tex] ) = (4, 3 )

Answer is (4,3)
This is because to find the mid point you add the x coordinates and divide by 2 and the you add the y coordinates and divide by 2.

x+x/2= midpoint x
y+y/2=midpoint y
And so you do:
7+1=8. 8/2=4 so x coordinate is 4
4+2=6. 6/2=3 so y coordinate is 3

And so the answer to the question is (4,3)


Ben has a collection of baseball cards. He has a total of 1,600 cards. Of the baseball cards, 35% are dated before 1980, 25% are dated from 1980 to 2000, and
the rest are dated after 2000.
How many baseball cards in Ben's collection are dated after 2000?

Answers

Answer:

640 cards

Step-by-step explanation:

If the rest are dated after 2000, that means that 40% are dated after 2000, since 25% + 35% = 60%

To find how many are dated after 2000, multiply 1,600 by 0.4:

1,600(0.6) = 640

So, 640 of the baseball cards are dated after 2000

Hannah paid for 2.5 pounds of peanuts with a ten-dollar bill. She received $1.20 in change from the cashier. What was the price, per pound, for the peanuts?

Answers

Answer:

$3.52

Step-by-step explanation:

10 - 1.20 = 8.8. Hannah had change, so you need to subtract it to find out how much she paid for 2.5 pounds.8.8/2.5 = 3.52. You are dividing to find the unit rate, which is the price of one pound.

Is the solution to a two-variable inequality always a solution of the related function? Explain.

Answers

Answer:

not always

Step-by-step explanation:

above

3c+5=23 what is c? c=3 c=6 c=7 c=18​

Answers

Answer:

c = 6

Step-by-step explanation:

Subtract 5 from both sides. This is to cancel out the + 5. You have 3c = 18Divide both sides by 3. 18/3 = 6, so c = 6.

Answer:

First, rearrange the equation so you can get the like terms together

3c=23-5

3c=18

c=18/3

c=6

Step-by-step explanation:

I hope this is the answer, and if it helped give me brainliest

HELP NOW 15 Points!!!!!!!
Which expression is not equivalent to the other three?
2x + 2+ 2x + 3x – 8
4 + 7x – 2
–2 + 5x + 2x – 4
8x – x – 6

Answers

4 + 7x - 2
That is the different one.

Answer:

4+7x-2

Step-by-step explanation:

i dont know how nit is the anwser put i got it right

Sandra was told to find X where g(x)=7
g(x)=-2x-12
Her first step was to substitute 7 in for X. Why is that incorrect?

Answers

Step-by-step explanation:

i think its as

g(x)=2x-12

7=2x-12

7+12=2x

19=2x

x=19

2

i hope so,

1. What is the constant rate of change of the table below?
Hours
2
4
6
Miles
70
140
210
280

WHATS THE ANSWER PLEADE HELP

Answers

70 miles

Step-by-step explanation:

every two hours there are 70 miles. If that was the answer you were looking for anyways.

−4y−4+(−3)
i need help solving this

Answers

Answer: The answer is negastive 11 although I am not one thousand percent sure that this is the answer, if it is not the correct anser then please tell me and I can get the corecct anwer for you!

negative 11 is the answer

Find g(3) -7
help please

Answers

Answer:

- 10

Step-by-step explanation:

g(x) = - x² + 2x

g(3) - 7 = - (3)² + 2(3) - 7 = - 10

The price of a video game was reduced from $60 to ​​​​​​​$45. By what percentage was the price of the video game reduced?
A.15%
B.25%
C.75%
D.40%

is it A?
im just not really good at math and I don't have much time left for the test im taking so PLEASE HELP!

Answers

Answer:

B. 25%

Step-by-step explanation:

You turn the 25% into a decimal so it would be .25 then you multiply by 60. After that you subtract the answer you have by 60.

Help please I will give Brainliest!!!!
Josiah invested $96,000 in an account paying an interest rate of 3.5% compounded continuously. Assuming no deposits or withdrawals are made, how long would it take, to the nearest year, for the value of the account to reach $153,400?

Answers

The number of years it will take for the value of the money in the account to reach $153,400 would be = 17 years.

What is simple interest?

Simple interest is defined as the amount of money that is received as an extra cash based on an investment made in an account.

The principal amount of money invested= $96,000

The rate of interest = 3.5%

The total interest on the principal amount = $153,400- $96,000 = $57,400

The time for this investment= ?

Using the formula for simple interest= p×T×R/100

57,400 = 96,000 ×T× 3.5 /100

Make T the subject of formula;

T = 57,400×100/96,000×3.5

T = 5740000/336000

T = 17 years (approximately)

Learn more about simple interest here:

https://brainly.com/question/25793394

#SPJ1

40.5g of sugar is needed to make 5 cakes. How much sugar is needed for 8 cakes?

Answers

Answer:

64.8g

Step-by-step explanation:

First you would divide 40.5 by five which would equal 8.1 ; 8.1 resembles 8.1g of sugar per cake. So, 8.1 times 8 cakes would be 64.8g of sugar needed for 8 cakes.

64.8g i did the test

Factor f(x)=x3+x2-17x+15 if f(3) =0

Answers

Answer:

Step-by-step explanation:

x^3+x^2-17x+15  replace x with 3

3^3+3^2-17(3)+15 =0

27+9-51+15  combine

=0

HELP THIS IS DUE TONIGHT!!

What is the LCM (least common multiple) of the following

16ab^3 5a^2b^2 20ac

Also ^ means that it’s an exponent

Answers

80a^2b^3c is your answer I think

Aaaaa pls help ASAP on the second unanswered one
30 points!!

Answers

Answer:

A is the answer

Easy way:

Figure out all of the slopes in the choices and see which one is different.

Answer:

The answer is A.

Step-by-step explanation:

Hope that helps!! Please give me brainliest!!

I need Help with this Question Plzz!!!

Answers

What’s the question

Can someone help me with this??!!

Explain the difference between -34 and (-3)4, and evaluate each power.

Answers

Answer:

68

Step-by-step explanation:

the brackets make the 3 positive

Write the number 76,689 in expanded form

Answers

(70,000) (6,000) (8,000) (80) (9)

PLEASE HELP ASAP The skate pro company manufactures skateboards. They found 12 defective skateboards in a batch of 400. How many defective skateboards might they find in a batch of 1,200?

What is the probability that a skateboard is defective?SIMPLIFY
a)3/100
b)12/400
c)4/100

Answers

Answer:

I believe the answer is A. love your pfp btw

Step-by-step explanation:

12/400 is .03 or 3%

A is the answer I think have good day

Please help :) Please help :)​

Answers

Answer:

2

Step-by-step explanation:

Answer:

Step-by-step explanation:

Find the area of the square.
3
3-m
m2
Help please ASAP

Answers

Answer:

7 is the answer hope it will help you

Answer:

l = 12.25 m²

Step-by-step explanation:

Here, l = 3½ m = 3.5m

∴ Now, The area of a square is

= l²

= (3.5)² m

= 12.25 m²

Thus, The area of a square is 12.25 m²

-TheUnknownScientist

PLEASE HELP ILL GIVE YOU BRAINLIEST!!!!!

Answers

Step-by-step explanation:

Jeremiah solved equation by multiplicative inverse.

Therefore,

Option D is correct ✔

And

Kelly solved equation by Additive inverse.

Therefore,

Option B is correct ✔

Meryl needs to add enough water to 11 gallons of an 18% detergent solution to make a 12% detergent solution. Which
equation can she use to find g, the number of gallons of water she should add?

Answers

Answer: 1.98/11+g = 12/100

Answer:

D [tex]\frac{1.98}{11+g} =\frac{12}{100}[/tex]

Step-by-step explanation:

edge

What is the answer for X and Y
(Geometry)

Answers

Answer: y =21; x = 7√3

have: cos 60° = x/(14√3) = 1/2 => x = 1/2. (14√3) = 7√3

sin 60° = y/(14√3) = (√3)/2 => y = (√3)/2 . 14√3 = 21

Step-by-step explanation:

Kyle missed 3 questions on the math exam. If he missed 15% of the questions, how many questions were on the exam all together?

Answers

Step-by-step explanation:

consider the number of Q = X

then 15% × X = 3

then (15 ÷100) X = 3

X = 3 × ( 100÷ 15 ) = 20 Q ( :

i neeed answer fast thanks <3

Answers

Answer:

C, 0.28 x 63 = p

Step-by-step explanation:

Basically, C is getting 28% of 63.

This can be better shown in terms of 100. Let's say you want 28 percent of 100.

0.28 x 100 = 28

0.28 x 63 = p

0.28 x 63 = 17.64, which is 28% of 63

do this yaayayyayaya brainliest for all thanks so much!!

Answers

Answer: -5 - (-10 )= 5

Step-by-step explanation:

 The arrows on the number line stops at -5 and -10 so you subtract -5 minus -10 and get your anwser 5

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