Antoinette solves the linear equation 3 (x minus 3) + 2 x + 9 = 2 x + 2 (x minus 1) using the steps shown below.

Step 1: 3 x minus 3 + 2 x + 9 = 2 x + 2 (x minus 1)
Step 2: 5 x + 6 = 4 x minus 1
Step 3: 5 x minus 4 x = negative 1 minus 6
Step 4: x = negative 7

She checks her solution by substituting –7 for x in the original equation. She determines that her answer is incorrect. Which best describes Antoinette’s error?

Answers

Answer 1
She distributed incorrectly in pretty sure
Answer 2

Answer:

A, she distributed incorrectly

Step-by-step explanation:


Related Questions

GOODNIGHT, HELP MEH PLS,ITS 12PM. AND IM DOING HW :(,PLS

Which expression has the greatest value?


134÷16

134÷110

25÷110

25÷16

Answers

Answer:

134÷16

Step-by-step explanation:

134÷16=8.375

134÷110=1.21818

25÷110=0.2272

25÷16=1.5625

The answer is the second one!

Which of the following is a correct interpretation of the expression -7-(-11)

A.Start at -7 on the number line and move 11 to the left.

B.Start at -7 on the number line and move 11 to the right.

C.Start at -11 on the number line and move 7 to the left.

D.Start at -11 on the number line and move 7 to the right.

WILL GIVE BRAINLIEST IF ITS RIGHT

Answers

Answer:

Start at -11 on the number line and move 7 to the left.

what is 15/8 equal to?

Answers

Answer:

1.875

Step-by-step explanation:

i hope this helps, have a good day!

Can someone help me find the formula and the area of this shape asap please I do not understand it. NEED HELP QUICK!!!

Answers

Answer: 2976 is the answer

Answer:

144ft^2

Step-by-step explanation:

Two shapes in this figure, trapezium and rectangle.

Trapezium area formula: 1/2 x (sum of bases) x Height

Rectangle area formula: length x breadth

Figure area:

Trapezium area: 1/2 x sum of bases x height

Trapezium area: 1/2 x (5+12.4) x 8

Trapezium area: 1/2 x 17.4 x 8

Trapezium area: 69.6

Rectangle area: length x breadth

Rectangle area: 12.4 x 6

Rectangle area: 74.4

Area of complete figure: Area of trapezium + Area of rectangle

Area of complete figure: 69.6 + 74.4

Area of complete figure: 144ft^2

Hope it helps you!!!!

Rewrite the expression using the distributive property and collecting like terms
9x-4/10 + 3x+2/5

Answers

12x would be the answer
12x

The fractions cancel out, so it’s just 9x+3x

Help plz Lucia and Randy have signed a contract to purchase a home. The closing date is March 27, a

the buyer owns the property on the day of closing. The selling price of the home is $852,500

Lucia and Randy obtained a fixed-rate mortgage from a bank for $665,000 at 7.55% interest

The seller has already paid $15,378.15 in property taxes for the coming year. How much will

Lucia and Randy owe in prorated expenses?

Answers

Answer:

L

Step-by-step explanation:

Answer:

Lacey and Rick will owe $ 7662.88  in prorated expenses

Step-by-step explanation:

The number of days till june 27 us

Jan 31 +  Feb 28   + March 31  + April 30  +  May 31  + June 26 =177 days

In a year we have 365 days

The owner has paid tax for 177 days

Now  Lacey and Rick have to pay tax for  =365 -177 days  = 188 days

Now  for one day tax amount will be

=

= 40.76

Now the tax amount for 188 days is

=

= 7662.88

Step-by-step explanation:

Hope it helps >_<

1289 - _____ + 856 = 1289

Answers

856 because it goes back to the number it starts with

-856 because -856+856=0 so you’ll be left with 1289

Pls help its past due 11 days

Quianna collects vinyl figurines. She had 14 in her collection. For her birthday, she received x more figurines to add to her collection. Write an equation that presents the total number of figurines, y , that Quianna has in her collection

Answers

Answer:

17 sorry

Step-by-step explanation:

Mr. G is trying out for the football team. The coach asks all potential recruits to run the diagonal from one corner of the field to the opposite corner (i.e. run a diagonal) and back again!



Assuming the field is a perfect rectangle that is 300 feet long and 160 feet wide, how much will Mr. G have to run? Round your answer to the nearest foot.

Answers

Answer:

340 feet

Step-by-step explanation:

Well if it is a perfect rectangle we can use the Pythagorean theorem to find the diagonal, which is a^2 + b^2 = c^2. So a=300, b=160, if we square them and add them it'll be 115600, and the square root of that is 340. So the diagonal is 340.

If you need a better explanation on the Pythagorean theorem let me know in the comments.

Find the zeros of the functions
f(x)=-x^2+25

Answers

The answer is 5!!!!!!!!!!!
The correct answer is 5 as shown in the picture above/below

What is the area of figure?



• A. 320 square centimeters
• B. 608 square centimeters
• C. 448 square centimeters
• D. 560 square centimeters​

Answers

Answer:

area of trapezium=1/2 ×20(38+18)=560cm²

Answer:

C. 448

Step-by-step explanation:

Since 38-18=20, you divide by 10 to find the base of the two triangles on the side. The height of the triangle is 16 and the formula is basexheightx1/2.

10x16x0.5=80

You then multiply that by two because there are two triangles

80x2=160

You then have to find the rectangle in the center, which is 16x18=288 cm

Then we add it all up

160+288=448

A tower 15m high casts a shadow 30m long. A nearby telephone pole casts a shadow 16m long. Find the height of the telephone pole. Plz show ur work, thx slatttttt

Answers

Answer:

8 feet.

Step-by-step explanation:

If we know the shadow (30 ft) of a tower (15 ft), we can use use the ratio

[tex]\frac{30}{15}=\frac{16}{x}[/tex] where 'x' is the height of the telephone pole. Cross multiply, and we get the equation [tex]240=30x[/tex]. The rest of the problem is pretty straightforward, we divide both sides by 30 to find x. In the end, you will find that the height of the telephone pole is 8 feet.

Hope this helped!

The answer should be 8 feet

NEED HELP ASAP!!!!!!!!

Answers

Answer:

answer is 42

please mark ❣️❣️

as branloest

Answer:

area of triangle AED=1/2xAExDE

Step-by-step explanation:

HELP PLEASE
consider that 15(1.055)^x shows the balance in a savings account over time with no additional deposits or withdrawals. Which statement is the best interpretation of one of the values in this function?

Answers

Answer: I comment you and you never text back so you never give me that 15(1.055)^x the x it should have a number to solve it if not it can’t solve it let just said you want to solve 15(1.055)^x but the x= 4 here a picture

Step-by-step explanation: hope this help :)

can anybody plzz helpme understand what domain ,funtions and range are?

Answers

The domain is all input values(otherwise known as all x-values on the x-axis) and the range is all possible output values( y-values, as shown on the y-axis). Functions are expressions involving 1 or more variables, in a function x-values are only allowed 1 y-value or else it isn’t considered a function.

Hope this helps!

Ernesto jarred 12 liters of jam after 2 days. How much jam did Ernesto jar if he spent 3 days making jam? Solve using unit rates.

Answers

Answer:

18 liters

Step-by-step explanation:

12 liters/2 days = 6 liters/day

6 liters/day x 3 days = 18 liters

He would have 18 liters after 3 days.

PLEASE HELP ME!!!!!!!!!!!!!
Write an inequality for the sum of twice a number and 5 is at most 15. Use y as the variable.

Answers

Answer:

The answer to the problem is 5

Step-by-step explanation:

The sum of twice a number y and 5 is at most 15" can be translated mathematically into the following inequality:

2y + 5 ≤ 15 since the sum, 2y + 5, is at most 15 but could be less than 15.

To solve this inequality for n, proceed as follows:

First, subtract 5 from both sides of the inequality as you would in solving an equation:

2y + 5 - 5 ≤ 15 - 5

2y + 0 ≤ 10

2y ≤ 10

Now, to finally solve the inequality for the variable y, divide both sides of the inequality by 2 as you would in solving an equation:

(2y)/2 ≤ 10/2

(2/2)y ≤ 10/2

(1)y ≤ 5

n ≤ 5 which is all real number less than or equal to 5.

Test Values (y = -1/2, 0, 3, 5, and n = 7):

For y = -1/2:

2y + 5 ≤ 15

2(-1/2) + 5 ≤ 15

-1 + 5 ≤ 15

-4 ≤ 15 (TRUE)

For y = 0:

2y + 5 ≤ 15

2(0) + 5 ≤ 15

0 + 5 ≤ 15

5 ≤ 15 (TRUE)

For y = 3:

2y + 5 ≤ 15

2(3) + 5 ≤ 15

6 + 5 ≤ 15

11 ≤ 15 (TRUE)

For y = 5:

2y + 5 ≤ 15

2(5) + 5 ≤ 15

10 + 5 ≤ 15

15 ≤ 15 (TRUE)

For y = 7:

2y + 5 ≤ 15

2(7) + 5 ≤ 15

14 + 5 ≤ 15

19 ≤ 15 (FALSE)

Therefore, the possible values for y which will make the relevant inequality, 2n + 5 ≤ 15, a true statement are:

{y | y is a real number and y ≤ 5}

The answer for this problem is 5

Besties pls help did I get these right?

Answers

Answer:

Yep!

Step-by-step explanation:

I'm not 100% sure if your first one is correct, but I know the second one is! Great job :)

HELPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPP

Answers

Answer:

1. 16

2. 1

3. 5

4. 16

5. 32

Step-by-step explanation:

Hoped it helped haha

Answer:

1. 16  2. 1   3. 5  4. 16  5. 32

Step-by-step explanation:

MARKING BRAINLIEST PLEASE HELP WICH ITEMS DO I DRAG INTO EACH BOXES PLEASE ONLY ANSWER IF YOU'RE 100% SURE

Answers

Answer:

The first 1 should go in the first box.

The second option should go in the second.

The last one should go in the third box.

Hope that helps!

Step-by-step explanation:

Answer:

2 tens 8 ones and 3 tenths —> 28.3

2 ones 8tenths 3 thousandths—>2.083

2 ones 8 hundredths 3 thousandths—>NA

2tenths 8hundreths 3 thousandth—> 0.283

Step-by-step explanation:

Hope this helps please mark me brainliest thanks! :D

There are 5,000 books in the​ town's library. Of​ these, 4,500 are fiction. To find the percent of the books that are​ fiction, first set up the percent equation. Then find the percent.

Answers

Answer:

4,500 = m x 5,000

90%

BRAINLIEST?

What the other person said

Which of the following square roots is best represented by Point A?


3<------------------------------------(A)--->4

A)[tex]\sqrt 7\\\sqrt 12\\\sqrt 15\\\\sqrt 8[/tex]

Answers

Bro what is this you know you can insert a picture then I’ll come back and help you
It’s the square root of 15 I’m pretty sure

9(2x + 15) = 45
Can you help me?

Answers

Answer:

= -5

Step-by-step explanation:

First you would use distributive property and multiply the 9 and 2 (18x) then 9 and 15 (135)
Now you have 18x+135=45 so you need to get X alone by using inverse operations and subtract 135-45 (90)
18x=90 now you divide 18 and 90 and your answer is x=5

help pleaseeeeeeeeeeeee

Answers

Answer: All functions must not have a repeated x-value, because they have to pass the vertical line test. Hope this helps!

Multiply. Write your answer as a fraction or as a whole or mixed number.

Answers

Answer:
4 1/6

5 x 5 = 25
6 x 1 = 6
Simplify
25/6 = 4 1/6

BRAINLIEST PLEASE HELP ASAP WICH ITEM DO I DRAG INTO THE BOXES ONLY ANSWER IF 100% CORRECT

Answers

Top right is 4.076
Bottom left is .476
Bottom right is 47.6

Answer:

the screen shot shows the answer

PLZ HELP WILL GIVE BRAINS :)

Answers

Answer: 36.4 miles per gallon!

Step-by-step explanation: To get your answer....divide the y (miles driven) by x (gallons used). Each divided gives you the answer of 36.4 which is the constant of proportionality between the number of miles driven and the number of gallons used.

For example: 691.6 divided by 19= 36.4

                       1528.8 divided by 42=36.4

                        1638 divided by 45=36.4

 

The measure of an angle is 60.6°. What is the measure of its supplementary angle?

Answers

Answer:

119.4°

Step-by-step explanation:

The answer is 119.4° because supplementary means that the angles add to 180°, and since 180-60.6 is 119.4, that is the answer.  

Sorry if I'm wrong but I hope this helps!  Have a great day/night!

Answer:

119.4 and the little degree sign (119.4 degrees)

Step-by-step explanation:

Supplementary angles add up to equal 180 degrees.

180-60.6=119.4 degrees

Find the area of the figure and type your result in the empty box.

Answers

Answer:

24

Step-by-step explanation:

4 x 2 = 8

8 x 3 = 24

24 area

what is the value of x?

Answers

Answer
42

Because that angle is 90 degrees so 90-48-42
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