Which step was an error made?

Which Step Was An Error Made?

Answers

Answer 1

Answer:

step 1

Step-by-step explanation

no u

Answer 2

Answer: Step 1 is incorrect.

Step-by-step explanation: This is because in the inital equation,

7x + 9 - 2x = 2(x + 15),

there is a distributive property error because they did not multiply both terms in the parenthesis by 2.


Related Questions

Find the surface area, in square inches, of a cube whose volume is 8 in³.

Answers

Answer:

24 in^2

Step-by-step explanation:

common math

Answer:

Surface area of cube is 24 in²

Step-by-step explanation:

In this question we have given volume of cube that is 8 in³. But we know that volume of cube is a³. So ,

[tex] \implies \: a {}^{3} = 8[/tex]

Now ,

[tex] \implies \: a = \sqrt[3]{8} [/tex]

So , cube root of 8 is ,

[tex] \implies \: \boxed{\bold{a = 2}}[/tex]

Therefore, value of a is 2 inches .

Now , we are finding surface area of cube . We know that surface area of cube is 6a² . So ,

6 ( 2 )²

6 ( 4 )

24

[tex] \pink{ \boxed{ Therefore, \: surface \: area \: of \: cube \: is \: 24 \: in ^{2} }}[/tex]

#Keep Learning

A restaurant worker used 5 loaves of wheat bread and 2 loaves of rye bread to make sandwiches for an event. Write a ratio that compares the number of loaves of wheat bread.

Describe what the ratio 7:2 means in terms of the loaves of bread used for the event

Answers

Answer:

5:2 or 5 to 2 as a fraction 5/2

Step-by-step explanation:

Answer:

5:2

Step-by-step explanation:

there are 5 wheat bread and 2 rye bread loaves so 7:2 means you added 2 more loaves of wheat bread.

Cube-shaped boxes will be loaded into the cargo hold of a truck. The cargo hold of the truck is in the shape of a rectangular prism. The edges of each box measure 2.50 feet and the dimensions of the cargo hold are 7.50 feet by 15.00 feet by 7.50 feet. What is the volume, in cubic feet, of each box? (Big box volume) and (small box volume)

Answers

Solve each problem. Volume of a Box A piece of sheet metal is 2.5 times as long as it is wide. It is to be made into a box with an open top by cutting 3 -inch squares from each corner and folding up the sides, as shown at the top of the next page. Let x
represent the width of the original piece of sheet metal. (a) Represent the length of the original piece of sheet metal in terms of x.
(b) What are the restrictions on x?
(c) Determine a function V
that represents the volume of the box in terms of x
(d) For what values of x
(that is, original widths) will the volume of the box be between 600 and 800 cubic inches? Determine the answer graphically, and give values to the nearest tenth of an inch

The  Volume of cubical box is 15.625 ft³.

The Volume of Cuboidal box is 843.75 ft³

What is Volume?

Volume is a term used in mathematics to describe how much three-dimensional space an item or closed surface occupies.

Given:

Cube: edge = 2.5 feet

Cuboid: l = 7.5 ft, w= 15 feet, h= 7.5 feet

So, Volume of cubical box

= l³

= 2.5³

= 15.625 ft³

and, Volume of Cuboidal box

= lwh

= 7.5 x 15 x 7.5

= 843.75 ft³

Learn more about Volume here:

https://brainly.com/question/1578538

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Beinggreat78, this is mostly for you. but whoever gets it right can have brainliest, but answer ASAP!

Answers

Answer:

[tex]beinggreat78~here.[/tex]

The answer is 5 : 19. I included the explanation on your other question. :-)

Answer:

5:19

Step-by-step explanation:

add all fruits you get 19

peaches to all fruits

= 5:19

Anyway why did you delete my answer?

Mark me as a brainlest please!

What number does 10 need to be divided by to make 5?

Answers

Answer:

2

Step-by-step explanation:

We can put this into an equation:

10/x=5

first, we multiply x on both sides:

10=5x

and then we divide by 5 on both:

2=x

so the answer is 2

Answer:

2

Step-by-step explanation:

10 divided by 5 equals 2. If you have trouble doing this you can multiply with your calculator to find the answer. Or even divide with a calculator!

Hope this helps :)

Have a great day and enjoy your assignments!

<3 sun

Solve rational equation

Please Draw Steps, and show answer please!

Answers

[tex] \frac{2x}{x + 2} - \frac{x}{ - 1} = 1[/tex]

[tex]⇢ \frac{2x}{x + 2} = 1 + \frac{x}{x - 1} [/tex]

[tex]⇢ \frac{2x}{x + 2} = \frac{(x - 1) + x}{ - 1} [/tex]

[tex] ⇢\frac{2x}{x + 2} = \frac{2x - 1}{x - 1} [/tex]

By, Cross multiplying, we get

[tex]⇢2x(x - 1) = (2x - 1)(x + 2)[/tex]

[tex]⇢2 {x}^{2} - 2x = 2x(x + 2) - 1( x+ 2)[/tex]

[tex]⇢2 {x}^{2} - 2x = 2 {x}^{2} + 4x - x - 2[/tex]

Here, [tex]2 {x}^{2} [/tex] from both sides will get cancelled

[tex] ⇢- 2x = 3x - 2[/tex]

[tex]⇢ - 2x - 3x = - 2[/tex]

[tex] ⇢- 5x = - 2[/tex]

[tex] ⇢x = \frac{ - 2}{ - 5} [/tex]

[tex] ⇢ \underline { \boxed{ x = \frac{2}{5} }} [/tex]

Answer:

[tex]x=\frac{2}{5}[/tex]

Step-by-step explanation:

[tex]\frac{2 x}{x+2}-\frac{x}{x-1}=1[/tex]

[tex]\begin{aligned} & \Leftrightarrow \frac{2 x(x-1)}{(x+2)(x-1)}-\frac{x(x+2)}{(x-1)(x+2)}=1 \\& \Leftrightarrow \frac{2 x^{2}-2 x}{(x+2)(x-1)}-\frac{\left(x^{2}+2 x\right)}{(x+2)(x-1)}=1 \\& \Leftrightarrow \frac{2 x^{2}-2 x-\left(x^{2}+2 x\right)}{(x+2)(x-1)}=1 \\& \Leftrightarrow \frac{2 x^{2}-2 x-x^{2}-2 x}{(x+2)(x-1)}=1 \\& \Leftrightarrow \frac{x^{2}-4 x}{(x+2)(x-1)}=1 \\\end{aligned}[/tex]

[tex]\begin{aligned}& \Leftrightarrow x^{2}-4 x=(x+2)(x-1) \\& \Leftrightarrow x^{2}-4 x=x^{2}-x+2 x-2 \\& \Leftrightarrow x^{2}-4 x=x^{2}+x-2 \\& \Leftrightarrow-4 x=x-2 \\& \Leftrightarrow 5 x=2\end{aligned}[/tex]

therefore,

[tex]x=\frac{2}{5}[/tex]

Are multiplication and division of unit fractions related? Describe the relationship you see. BRAINLIEST HERE

Answers

Step-by-step explanation Hope this help a'lot

Multiplication and division both need to have a common denominator or else you would get an incorrect answer. Dividing two fractions is the same as multiplying the first fraction by the reciprocal of the second fraction. The first step to dividing fractions is to find the reciprocal (reverse the numerator and denominator) of the second fraction. Next, multiply the two numerators. Then, multiply the two denominators."

Multiplying and Dividing fractions are exactly the same. When dividing a fraction your doing the same as multiplying. Dividing two fractions is the same as multiplying the first fraction by the reciprocal of the second fraction. For example you have 1/3 divide by 4/6 you switch the sign to multiplication and switch 4/6 to 6/4. Then you multiply 1/3 and 6/4 across leaving you with 6/12, simplified to 1/2.

Find the measurements

Answers

Answer:

<1=28, <2=62

Step-by-step explanation:

You know that the large triangle is 180 and there is a smaller triangle that is also 180. You are also provided an angle is 90 and another is 62.

90+62=152.

180-152=28. So, angle 1=28.

28+90=118.

180-118=62

The value of measure of angle ∠1 is,

⇒ ∠1 = 28°

And, The value of measure of angle ∠2 is,

⇒ ∠2 = 118°

What is mean by Angle?

An angle is a combination of two rays (half-lines) with a common endpoint. The latter is known as the vertex of the angle and the rays as the sides, sometimes as the legs and sometimes the arms of the angle.

Now, For definition of angles of triangles;

We get;

⇒ 62° + 90° + ∠1 = 180°

⇒ 152° + ∠ 1 = 180°

⇒ ∠ 1 = 180° - 152°

⇒ ∠1 = 28°

And, Sum of two interior angles of triangle is equal to an exterior angle of triangle.

Hence, We get;

⇒ ∠2 = ∠1 + 90°

⇒ ∠2 = 28° + 90°

⇒ ∠2 = 118°

Thus, The value of measure of angle ∠1 is,

⇒ ∠1 = 28°

And, The value of measure of angle ∠2 is,

⇒ ∠2 = 118°

Learn more about the angle visit:;

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#1 Please answer, i'm timed (EDGE 2022)

Answers

The answer is B) [tex]2(\frac{2}{5}x+2) =\frac{4}{5}x+4[/tex]

If it is incorrect it should be D) [tex]2(\frac{2}{5}x+4)=2\frac{2}{5} x+8[/tex]

The answer might be b

I'm stuck T^T please help me!

Answers

Answer:

a. 52%

b. 56%

Step-by-step explanation:

a. 43+87=130

130/250×100

=52

b. 87+53=140

140/250×100

=56%

Find the value of n.

Answers

I think it’s 45 because it’s look like
The value of n is 45 I just did it! Trust me

A scatter plot is made comparing x, the number of hours since midnight, with y, the number of lights turned on in a house. What would a point at (7,8) on the scatter plot mean?

Answers

Answer:

7 hours since midnight and 8 lights turned on.

Step-by-step explanation:

(x,y) so 7 is the x and 8 is the y.

allie went trick - or - treating one day. she wanted to dress up as a princess but her costume costs $340. she only as $119. how much money does allie need for her costume?
my sister needs help.....ughhhh shess soo annoyinggggg like dam

Answers

Answer:

459

Step-by-step explanation:

340+119=459

Answer:

221

Step-by-step explanation: 340-119 is 221

math, help needed pls ​

Answers

All angles add up to at 180° proof. 180-117=63 so now you have 2 angles. 59+63=122 now 180-122=58. your answer should be 58°

6[5x(41-36)-8+14)] =?
help pls

Answers

236 if my calculations were right:) have a wonderful rest of your day

Sharon is buying candy. She buys 5 of each type on the menu. If she splits the price equally with four friends, how much do they each pay?

Candy Menu
Item
Cost
Licorice
$0.05
Gumball
$0.01
Gummy Bear
$0.07

Answers

$.09 is how much each friend pays
Totale price: ($0.05 x 5) + ($0.01 x 5) + ($0.07 x 5) = $0.65

The price each pay: $0.65/5 = $0.13

The speed of 10 cars on a certain highway stretch was recorded below. If the mean of the data is 63.2 with a standard deviation of 6.2, circle all data values with a z-score less than 0.5.
{49, 58, 60, 63, 64, 64, 65, 67, 70, 72}

Answers

Answer:  58

Step-by-step explanation:

George started a coin collection. His dad gave him 75 coins. Each month he will add 20 coins to the collection. Which equation can be used to find y, the total number of coins in George's collection after x months?
A y= 75x + 20
B y = 20x + 75
C y = 75x - 20
D y=20x - 75

Answers

option B

hope it helps...!!!

Answer:

Option B!

Step-by-step explanation:

x = amount of months.

Each month = + 20 coins.

 

*Each month x amount of months = y*

so 20x + 75(Coins dad gave)

The base of a rectangular pyramid has a length of 3 inches and a width of 2 inches. The height of the pyramid is 6 inches. Find the volume of the pyramid.

Answers

Answer:

The volume is 12!

Step-by-step explanation:

Please let me know if im correct or not! but i belive i am.

Answer:

12in³

Step-by-step explanation:

V = (B * h) / 3, where B is the area of the base and h is the height.

The base is a rectangle, so it's easy to find it's area:

B = 3 * 2 = 6

Now just find the volume:

V = (6 * 6) / 3 = 36 / 3 = 12in³

Answer this asap please

Answers

Answer:

p x 7 = d

Step-by-step explanation:

If the If the amount of meat is 3 and the cost is 21 in dollars you divide 21 by 3 and the answer is 7 and to see if the answer is 7 for the rest of the questions divide 35 by 5 that equals to 7 same thing with 49 divided by 7 that equals to 7.

Answer:

P x 7=d

Explanation:

21 divided by 3 = 7, input 7 into an equation with p and d and it puts together

P x 7=d

Suppose the value 60 is added to the data set.

Answers

i would need to see what the data set is to further answer the questions because i don’t know what data set the question is referring to
Y=3x+1 use the y=C +24

In the diagram, AB, BC, CD, DE, EF, FG, GH, and HK all have lengths 4, and all angles are right angles, with the exception of the angles at D and F.



Determine the length of DF.

Answers

Answer:

5.66 length (3s.f.)

Step-by-step explanation:

[tex] \sqrt{4 {}^{2} + 4 {}^{2} } [/tex]

= 5.65685

= 5.66 (3 s.f.)

By using the Pythagorean theorem, we will see that the length of DF is 5.7 units.

How to get the length of DF?

We can make a right triangle with the sides: DE, FE, and DF.

Such that we know that:

DE = FE = 4

These two are the cathetus of the right triangle.

Then DF is the hypotenuse.

Now, remember the Pythagorean theorem, it says that the sum of the squares of the cathetus is equal to the square of the hypotenuse, then we have:

(DE)^2 + (FE)^2 = (DF)^2

4^2 + 4^2 =(DF)^2

√32 = DF = 5.7

The length of DF is 5.7 units.

If you want to learn more about right triangles, you can read:

https://brainly.com/question/2217700

1. HELP ASAP!!! GIVING BRAINLIEST!!!
Find each missing measure for both problems.

Answers

Answer:

Step-by-step explanation:

Q1

x+68+41=180

x+109=180

x=180-109

x=71

Q2

x+47+16=180

x+63=180

x=180-63

x=117

Here is your answer

The question is in the Screenshot so as to answer options.

Answers

Answer:

option C

i hope it is correct

You select 32 marbles from a bag. The results are as follows: 6 blue marbles, 5 green marbles, 4 red marbles, 8 white marbles, and 9 yellow marbles. Find P(not green).

Answers

Answer:

19%, 13% 25% 28%

Step-by-step explanation:

6/32=

19%

5/32=

16%

4/34=

13%

8/32=

25%

9/32=

28%

Complete the net worth statement. What is the net worth of the individual?

Answers

Answer:

hard question you got there

Step-by-step explanation:

D) $26,595

Net worth= Total Asset - Total Liability

Find the measure of the central angle you would draw to represent apple juice in a circle graph.
a) 90 degrees
b) 54 degrees
c) 144 degrees
d) 30 degrees

Answers

The answer is 144 degrees
The answer is C. Hope this helped :)

The height of a football is given by the function h of t equals negative16 t squared plus 56 t plus 3, where h of t is the height of the football in feet and t is the time in seconds after the ball is punted.



What is the height of the football 3 seconds after it has been punted?

Answers

Answer:

27 feet.

Step-by-step explanation:

Graph the quadratic equation, then find the point on the graph which aligns with x=3. Y would equal 27.

Calculate the difference between 33.078 and 5.3005 using significant digits

i will give brainliest

Answers

Answer:

27.778, so 5 significant digits

Step-by-step explanation:

Ricardo has a $50 gift card for an electronics store. He also has a coupon good for $10 off his purchase. Let "x" represent the amount of merchandise Ricardo can buy from the store using his gift card and coupon. Graph the solution set for "x" on the number line.

Answers

Answer:

its the first option on the paper

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