Which properties were used to prove that the expressions 7x+4-x-2 and 6x+2 are equivalent?

Answers

Answer 1

Answer:

Step-by-step explanation:

Related Questions

Eric and Kelsey each work after school to earn money. Eric charges $10, plus an additional $4 per hour to babysit. Kelsey charges $15, plus an additional $3 per hour to rake. Eric and Kelsey work the same number of hours. Which system of equations can be used to determine how many hours, x, they need to work to earn the same amount of money, y?

Answers

Answer:

the option 3 or c is correct

Kayla earns 5% commission on
all jewelry sales. How much
would she earn if she sold $725
worth of jewelry?

Answers

Answer:

725 x0.05=36.25

Step-by-step explanation:

when finding percentage move the decimal over two places, making 5 0.05

what's the answer for 1/2 of 3/5?

Answers

Answer:

3/10

Step-by-step explanation:

this is the one i need help with please !! honors algebra 2 , 10th grade

Answers

Answer:

g(g(x)=25x

Step-by-step explanation:

g(g(x) is a composition function. Think of g(x) as input. That means whatever g(x) equal that will be inside of the function g(x)

g(x) equal 5x so 5x will be the equal value going into the function g(x)

[tex]g(x) = 5x[/tex]

[tex]g(x) = 5(5x)[/tex]

Which equal 25x

Pls help middle school math!!

Answers

r = square root of (A/pi)

Ted and Mary ordered meals costing a total of $30, including tax. They left an 18% tip. How much did they spend in all?

A $48.00

B $39.00

C $36.40

D $35.40

Answers

Answer:

D $35.40

Step-by-step explanation:

We need to find 18% of $30 and then add it to the $30 total.

To find a percent of a number, change the percent to a decimal by moving the decimal point two places to the left. Then multiply it by the number.

18% of $30 =

= 18% * $30

= 0.18 * $30

= $5.40

The tip was $5.40. Now we add the tip to the total.

$30 + $5.40 = $35.40

Answer: D $35.40

An arithmetic sequence has second term 28 and the fifth term 52. (3 marks) a. Find u1 and d. b. Find u10

Answers

Answer: See explanation

Step-by-step explanation:

Second term = a + d = 28 ....... i

Fifth term = a + 4d = 52 ......... ii

Subtract equation I from ii

3d = 24

d = 24/3 = 8

d = common difference = 8

Since a + d = 28

a + 8 = 28

a = 28 - 8 = 20

First term = a = 20

u10 = a + (n-1)d

= a + (10-1)8

= 20 + (9 × 8)

= 20 + 72

= 92

So I need help again so here is the question “My mom is baking cookies for a party. The recipe requires 2 eggs for every 4
cups of sugar To have enough cookies for the party, she determined she would
need 12 eggs. If my mom has 25 cups of sugar in the pantry, does she heve
enough sugar to make the cookies”

Answers

Answer:

She has enough sugar.

Step-by-step explanation:

Let x = cups of sugar needed

eggs/cups of sugar = 2/4 = 1/2

12 eggs/x = 1/2

24 = x

Since she as 25 cups available and she needs 24 cups, it looks like she has enough sugar with 1 cup left over. I hope she is making chocolate chip cookies.

1. Tickets to the school musical cost $3 for students and $5 for
nonstudents. For Friday night's performance, the total ticket sales were
$1790. The number of student tickets sold was ioo less than twice the number of nonstudent tickets sold.

a. Write a system of equations to represent this situation. Tell what the variables represent.

b. Solve the system of equations, How many student tickets were sold? How many nonstudent tickets were sold?

Answers

Answer:

Your answer.

3x + 5y = 1790

y= 2x -100

X= 176.15

Y= 252.3

Thank you. And give my answer as Brainlist answer. Follow me for more

Step-by-step explanation:

Ms. Alonzo ordered 4,000 markers for her store. Only 1/10 of them arrived. How many markers did she receive?

Answers

Answer:

400 markers.

Step-by-step explanation:

4,000 × ¹/10 = 400.

.Answer:

To calculate a/b of some number c, where a, b, and c are any number, we do the following: a/b x c

Step-by-step explanation:

1/10 x 4,000 = 4,000/10

400 x 10

= 400

= 4 x 100

= 4 x 10 2

400 = 4 x 10 2 markers

PLSSSS HELPPP
I NEED TO FINISH THIS ASSIGNMENT!!!
WILL MARK BRAINLIEST

He has a cow and a buffalo on his farm. The two animals had cost him Rs 1800 and Rs 2400 respectively. Selling the cow will fetch him a profit of 10% whereas on the buffalo he will suffer a loss of 5%

What is the selling price of the buffalo????

WITH WORKING

Answers

Answer:

the two animals had cot him R 18000 and Re 2400 respectively

Please help on both! Will give brainliest!!

Answers

I can’t read it because the quality of the pictures are bad I’m sorry

what is the equivalent Ratios to 18:15

Answers

Answer:

6:5 in simplest form

Step-by-step explanation:

Answer:

6:5

Step-by-step explanation:

The greatest common factor, and only shared factor is 3. Use three and divide on both sides to get 6 and 5

39°
.(91-x9)
What solves for x

Answers

Multiple times 9 + 5 or more of a few other things that I don’t know what you do with this game

is y=1-x to the second power linear or nonlinear

Answers

Answer:

Non Linear

Step-by-step explanation:

Its non-linear because when you put X to the second power, it will change the function into a quadratic function

Which equation represents how much it would cost for any number of rides? * 1 point r = 1.50c c = r - 1.50 r = 1.50 + c c = 1.50r

Answers

C=1.50r would be the correct answer

If 91 is 1% of a number, what is that number? *

Answers

Answer:

The Answer is 1900.

Answer:

9100

Step-by-step explanation:

multiply the one percent by 100 to get the 100 percent

find the side of the square whose perimeter 20 m

Answers

20/4=5 square has 4 equal parts

Answer the photo below thanks

Answers

Answer:

I think its D

Step-by-step explanation:

PLZ HELP ill mark brainlist

Answers

Answer:

x is 60 and y is 50

hope it helped have a good day mate

help me please i have no idea what i’m doing

Answers

Answer:

1. 5

2. 5/3

3. 4.5

4. 21

5. 10

6. (-12

7. (-1.5

What is the arc length of a circle that has a 6inch radius and a central angle that is 65 degrees? Use 3.14 for pi and round your answer to the nearest hundredth
1) 0.65 Inch
2) 1.13 Inch
3) 6.80 Inch
4) 390.01

PLEASE HELP!!! ILL MARK BRAINLIEST

Answers

Answer:

6.80 inch

Step-by-step explanation:

Math Teacher is giving extra credit to who ever can come up with the best theme for his kids birthday party!!!

I will give a Branliest!

You can choose

A. Hunger Games

B. Men in Black

C. Classic Horror Movies

D. Jurassic Park

OR!!

Awnser With your own suggestion!!!!!!!

Answers

Answer:

E. HELLO

Step-by-step explanation:

‼️ PLEASEEEE HELPP‼️

Answers

Answer:

I think the answer is 17

Step-by-step explanation:

I think its 17 because i watched a video and it says the midline should be half of the bottom.

I rlly hope this would help

Each pencil eraser at the store cost $0.67 including tax. If Elijah pays $10.00 and receives $1.96 in change, how many erasers did he buy

ANSWERS:
A. 12
B. 8
C. 6
D. 11

Answers

Answer:

12 erasers

Step-by-step explanation:

So first you need to take that $10.00 and subtract $1.96, you should get $8.04, after that you need to divide it by $0.67, which should get 12 erasers.

Need the answer/step by step explanation

Answers

Answer:

8 weeks

Step-by-step explanation:

m=12+0.5w

Replace the m with the 16 and solve

16=12+0.5w

4=0.5w

8=w

Use algebra tiles to find the difference. Let one yellow tile equal +1 and one red tile equal –1. 12 – (–9)

Answers

Answer:

Step-by-step explanation:

12 - (-9)

Open The bracket :

Recall: - * - = +

Hence,

12 + 9 = 21

Find g. 45° 45°
[tex] 3\sqrt{2} [/tex]

Write your answer in simplest radical form, units

Answers

Answer:

sin45=3√2/g

g=3√2/(1÷√2)=3×√2×√2=3×2=6units

Answer: 6 (the math sign that’s like a checkmark i thinks it’s square root) 2. So like 6/2 you get the point.

Step-by-step explanation: I just had this problem on ixl and it gave me the answer

Please help I will give brainlist ❤️

Answers

I need more context sorry

Since Beth was born, the population of her town has increased at a rate of 850 people per year. On Beth's 9th birthday, the total population was nearly 307,650, Write and solve a linear equation to find the population on Beth's 16th birthday.

I only need the equation pls help

Edit: the equation needs to be in slope intercept form

Answers

Answer:

editor edit

37,650

Step-by-step explanation:

37650

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Nrp when is the administration of a volume expander indicated during newborn resuscitation? Linda is training to be an assistant at the local animal shelter. To become an assistant she needs to complete 48 h of training. Linda keeps a graph of the number of hours of training left to be completed. What is the rate of change of the number of hours remaining with respect to the number of days? Remember to include units. 8 more than 3 times a number is the same as -5 times the number.a. x = -1b. x = 1c. x = -2 What, approximately, is the highest concentration of co2 measured in the earth's atmosphere in modern times? Use the base example of two people walking to describe a system of two linear equation has i.) 0 solution 2) 1 solution 3) an infinite solution 1. How many grams are in 5.17 moles of C12H22O11? A government buys `x`fighter planes at `z` dollars each, and `y` tons of wheat at w dollars each. It spends a total of `B`dollars, where `B=xz+yw`. Write an equation whose solution is the given quantity:2. The price of a ton of wheat, given that a fighter plane costs 100,000 times as much as a ton of wheat, and that the government bought 20 fighter planes and 15,000 tons of wheat for a total cost of $90 million. A linear function always increases-true-false please help !!!!!!!!! True or false? mind-body dualism reduces all interior mental states to observable behavior. Consider these two arguments about immigration.In a well-structured paragraph, compare the rhetorical devices used by President Obama and President Trump. What was rule number three in the great Greene heist? PLSS HELP ASAPA bag of marbles contains 7 red, 8 orange, 9 purple, 7 white, and 5 yellow. Mark reaches into the bag and randomly picks out 3 marbles all at once.How many different 3-marble groups are possible?What is the probability that he will select 2 red and 1 yellow marbles? Tests show that the hydrogen ion concentration of a sample of apple juice is 0.0003 and that of ammonia is . find the approximate ph of each liquid using the formula , where is the hydrogen ion concentration. Why did alexander fleming suspect he could get penicillin from a species of mold? a. Wounds with superficial mold on the bandages were not becoming septic. b. Bacteria on culture plates were unable to grow near mold contamination.c. Soldiers eating moldy bread were not suffering from wound infections.d. Patients infected with a fungus like, athlete's foot, were less likely to have bacterial infections. e. Soldiers drinking fermented alcohol were less likely to have bacterial infections. A Ferris wheel is boarding platform is 2 meters above the ground, has a diameter of 68 meters, and rotates once every 9 minutes. How many minutes of the ride are spent higher than 37 meters above the ground A 1500 kg aircraft going 35 m/s collides with a 2000 kg aircraft that is parked and they stick together after the collision and are going 15 m/s after the collision. If they skid for 112.1 m before stopping, how long (in seconds) did they skid? Hint: Are the aircraft moving at a constant velocity after the collision or do they experience an acceleration? Suppose that you are using eye tracking on a cross-eyed participant and the calibration cannot be successful. What do you do which of the following is not a characteristic that should be demonstrated by unit objectives describe how the graph is transformed from its parent function?