Find the mistake!


1/4(x+12)=2

1/4x=10

x=-40

Answers

Answer 1
1/4(x+12)=2
1/4x + 12/4=2. 12/4=3
1/4x +3=2
-3 -3
1/4x=-1
(4/1)X (1/4x)=-1(4/1)

X=-4

Related Questions

PLEASE help Will brainlist 50 points!!!!!!!!!!!!

Answers

Answer:

5/6

4/5

6/7

Step-by-step explanation:

Answer:

6 and 7; 1 and 4; 4 and 5

Step-by-step explanation:

a supplementary angle is when two angles added together equal 180 degrees. In other words, if two angles make a straight line when put together, they are supplementary.

In the triangle shown, find the length of the hypotenuse.


If this question doesn’t get answered I’m gonna be stressed out even more. I don’t know any of the answers to any of these questions.

Answers

a^2+b^2=c^2
5^2+12^2=c^2
25+144=c^2
169=c^2
13=c
D is the answer

i thought of an integer.if i multiply it by itself you will get 9.What is my number

Answers

the number is 3 because 3 multiplied by itself (3) is equal to 9.

Answer:

Your number is 3

Step-by-step explanation:

3*3 is 9 and there are no other numbers multiplied by itself to get 9

Help please i beg you​

Answers

Answer:

its easy

use this formula

the right one is the solution of question number 1

Step-by-step explanation:

1.
4 cm
5 cm
3 cm
A. What is the area of the figure above?

B. What is the volume of the figure above?

Answers

Answer:

90 cm^3

5*4*3=90

Note: Enter your answer and show all the steps that you use to solve this problem in the space provided.
An elevator on the 10th floor goes down 9 floors. Then it goes up 19 floors, down 3, and finally down 12. What floor does it end up on? Write an equation to show how you found your answer.

Answers

Answer: it will be subtract try all things possible

Step-by-step explanation:

Sam and Odel have been selling frozen pizzas for a class
fundraiser. Sam has sold half as many pizzas as Odel.
Together they have sold a total of 126 pizzas. How many
pizzas did Sam sell?

Answers

Answer:

Odel has sold 84 Pizzas and Sam has sold 42

Step-by-step explanation:

:p

Describe a transformation or series of transformations that demonstrates the congruence between figures A and B.

Answers

Answer:

90 clockwise (or counterclockwise) rotation and then a reflection over the axis between the two shape (those two steps go in any order)

Step-by-step explanation:

for this lets mark the innermost point of each shape a (blue or A) and a' (red or B)* and the second point b and b'

here we see that the two shapes are in a position to where they seem reflected over a non-existent third diagonal axis, though this is not the case, we need to bring the shape into a position where it can be transformed to the quadrant of shape B and overlap the shape

so when you have a reflection over a diagonal axis, we can rotate or reflect the shape to a new quadrant, and perform the step thats not the first, so say we made a reflection over the X-axis, the shape is now in the lower half of the graph with shape B, from here we perform our last step wich is to rotate the shape into the quadrant of shape B in a clockwise motion, now a and a' overlap and b and b' overlap, same for c, c',d and d'

(*the ' in this case is called a prime symbol, when used, distinguishes two points or lines on a graph, A' = A prime)

A pattern is made using identical rectangular lines.
11 cm
7 cm
Find the total area of the pattern.​

Answers

Answer:

i think 18 since 11+7=18

i think this it is not corect 100%100

Find the measure of the given angles. Show work!!

Answers

Answer:

m∠A = 45⁰

m∠B = 75⁰

Step-by-step explanation:

Given question 4;

m∠A = x + 51

m∠B = 81 + x

m∠C = 60⁰

The value of the missing angles can be determined by the finding the value of x first;

m∠A  +  m∠B  + m∠C = 180⁰ (sum of angles in a triangle)

(x + 51)  +  (81 + x)  +  60⁰ = 180

(x + x) + (51 + 81 + 60) = 180

2x + 192 = 180

2x = 180 - 192

2x = -12

x = -12/2

x = -6

Thus, the values of the angles are calculated as follows;

m∠A = x + 51

         = -6 + 51  

          = 45⁰

m∠B = 81 + x

        = 81 - 6

         = 75⁰

What is the value of 6 - (-2)?

Answers

the value of 6-(-2) is 8

Answer:

8

Step-by-step explanation:

That's the value for 6- (-2)=8

After Kwan spent $5 of the money he earned for mowing lawns, he had $15 left. Which equation represents how to find the amount Kwan had before spending the money?

Answers

Answer:

$20 was how much money he had before he spent any money.

Step-by-step explanation:

So, with any problem like this, all you have to do to figure out the answer is to add how much money is left and how much was spent. So, like this:

Amount left + Amount spent = Original Amount

PLEASE HURRY

the graph of g(x) =x -5 is a translation of the graph of the parent function 5 units

Answers

Answer:

the answer is: 8(x)= 4 -5

Step-by-step explanation:

The graph of parent function and translated function are given below. Therefore, the transformation is shifted down 5 units.

The given function is g(x)=x-5.

What is the translation?

A translation in math moves a shape left or right and/or up or down. The translated shapes look exactly the same size as the original shape, and hence the shapes are congruent to each other. They just have been shifted in one or more directions.

Here, parent function is g(x) = x

To find the transformation, compare the function to the parent function and check to see if there is a horizontal or vertical shift, reflection about the x-axis or y-axis, and if there is a vertical stretch.

Shifted down: 5 units

The graph of parent function and translated function are given below. Therefore, the transformation is shifted down 5 units.

To learn more about the translation visit:

https://brainly.com/question/12463306.

#SPJ2

Just say yes if equivalent or no if not equivalent

5x and x + 5

Answers

Answer:

I am pretty sure there equivalent

What is bigger 11/15 or 8/9?

Answers

8/9 = 0.88...

11/15 = 0.733...

8/9 is bigger

Answer:

8/9 is bigger

Step-by-step explanation:

11/15 equals 0.733333.....

8/9 equals 0.88888.....

Find the circumference of a circle with diameter, d = 9.06m. Give your answer rounded to 2 DP

Answers

C= 3.14d
C= 3.14 x 9.06
C= 28.45

work out the size of angle A

Answers

Answer:

The measure of A is 93

Step-by-step explanation:

Here, we want to get the measure of angle A

we can start by getting the measure of angle C

Mathematically, we can use sine rule

It states that the ratio of the length of a side of a triangle and the sine of the angle it faces is constant

So to get C, we have the following;

9/sin 38 = 11/sin C

sin C = 11sin 38/9

sin C = 0.7525

C = sin^-1(0.7525)

C = 48.80

This is approximately 49

To get A,

we know that if we added the measure of interior angles of a triangle, the addition is 180 degrees

Thus, we have it that:

38 + 49 + A = 180

A = 180-38-49

A = 93

Tan
Part A
What is the measure, in degrees, of ZPTR? Enter your answer in the bo

Answers

Answer:

[tex] \purple {\bold {m\angle PTR=136\degree}} [/tex]

[tex] \orange {\bold {m\angle PQR=68\degree}}[/tex]

Step-by-step explanation:

PS and RS are tangents to the circle with center T at points P and R. (given)

TP and TR are radii of the given circle.

[tex] \therefore PS\perp TP\: \&\: RS\perp TR[/tex]

(radius is perpendicular to the tangent)

[tex] \therefore m\angle TPQ= m\angle TRS =90\degree [/tex]

In quadrilateral SPTR

[tex] m\angle TPQ+ m\angle TRS+m\angle PSR +m\angle PTR=360\degree [/tex]

[tex] 90\degree+ 90\degree+44\degree +m\angle PTR=360\degree [/tex]

[tex] 224\degree +m\angle PTR=360\degree [/tex]

[tex] m\angle PTR=360\degree - 224\degree[/tex]

[tex] \purple {\bold {m\angle PTR=136\degree}} [/tex]

By inscribed angle theorem:

[tex] m\angle PQR=\frac{1}{2} \times m\angle PTR[/tex]

[tex] m\angle PQR=\frac{1}{2} \times 136\degree[/tex]

[tex] \orange {\bold {m\angle PQR=68\degree}}[/tex]

9 slices from 1 cake =
slices from 2 cakes

Answers

Answer:

18?

Step-by-step explanation:

Well uh since it's 2 cakes wouldn't you multiply 9 by 2?

I mean I tried given the little information in the question so

Correct me if I’m wrong I think it’s 18

Pablo and max's follows a flight pattern approximatley modled by the equation h(t)=-8t^2+16t+2 where h(t)is their rocket's height in meters t seconds after launch. How many seconds was their rocket in the air

Answers

Answer: 2.11 s

Step-by-step explanation:

Given

Equation of rockets height is given by

[tex]\Rightarrow h(t)=-8t^2+16+2[/tex]

Height will be zero once the rocket lands on the ground

So, we can write

[tex]\Rightarrow h(t)=0\ \text{or}\ -8t^2+16t+2=0\\\Rightarrow 8t^2-16t-2=0\\\\\Rightarrow t=\dfrac{16\pm \sqrt{(-16)^2-4(8)(-2)}}{2\times 8}\\\\\Rightarrow t=\dfrac{16\pm \sqrt{320}}{16}\\\\\text{Neglecting negative value of t}\\\\\Rightarrow t=\dfrac{16+17.888}{16}=2.11\ s[/tex]

The rocket of height h(t) and modeled equation [tex]\rm h(t)=-8t^2+16t+2\\[/tex]

was in the air for 2.1 seconds.

What is a quadratic equation?

The given equation is  [tex]\rm h(t)=-8t^2+16t+2\\[/tex], where h(t) is the rocket's height in meters t seconds after launch.

In algebra, a quadratic equation is an equation that can be written in standard form as

[tex]\rm ax^{2}+bx+c=0}[/tex]

where x represents variable, and a, b, and c represent coefficient.

The given equation is

h(t) = 0

[tex]\rm h(t)=-8t^2+16t+2\\h(t)=-8t^2+16t+2 = 0\\[/tex][tex]\rm h(t)=-8t^2+16t+2\\[/tex]

The roots will be

[tex]\rm {\displaystyle t={\frac {-b\pm {\sqrt {b^{2}-4ac}}}{2a}}.}[/tex]

[tex]\rm {\displaystyle t={\frac {16\pm {\sqrt {(-16)^{2}-4\times 8\times 2}}}{16}}.}\\\rm {\displaystyle t={\frac {16\pm {\sqrt{320} }}{16}}}\\\rm {\displaystyle t={\frac{16+17.88}{16}\\[/tex]

Here, we have neglected the negative value of t

t = 2.1 seconds

So, the rocket of height h(t) and modeled equation [tex]\rm h(t)=-8t^2+16t+2\\[/tex]

was in the air for 2.1 seconds.

Here learn more about quadratic equations here:

https://brainly.com/question/2263981

NEED HELP, LIMITED TIME, HURRY

Which of the following digits is in the hundredths
place in the number above? 34,567.89
A.4
B.5
C.6
D.8
E.9

Answers

Answer:

9

Step-by-step explanation:

here you go!

b. 5, because if you look at it 567 is hundreds. so that being said 5 would be it

Find the value of x in the angle pair.

Answers

Answer:

[tex]\huge\boxed{\tt{x = 50}}[/tex]

Step-by-step explanation:

3x + 30 = 180 (Angles on a straight line add up to 180 degrees)

Subtract 30 to both sides

3x = 180 - 30

3x = 150

Divide 3 to both sides

x = 150 / 3

x = 50

[tex]\rule[225]{225}{2}[/tex]

Hope this helped!

~AH1807

Answer:

[tex]\Large \boxed{\sf x=50}[/tex]

Step-by-step explanation:

Angles on a straight line add up to 180°

[tex]30+3x=180[/tex]

Solve for x

[tex]3x=150[/tex]

[tex]x=50[/tex]

What is the unit rate of 48 newspapers in 6 piles?

Answers

Answer:

[tex] \sf8 \: \frac{newspapers}{plie}\: or\: \text{8 newspapers per pile} [/tex]

Step-by-step explanation:

to understand thisyou need to know about:unit ratelet's solve:

according to the question

48newspapers/6piles8 newspapers/plie

Answer:

Solution given:

48 newspaper in 6 pile=48news paper per 6 piles

=48/6=8 news paper per pile

the unit rate of 48 newspapers in 6 piles is 8 news paper per pile

3√-8/125 Evaluate 3 square root negative 8/125

Answers

Answer:

Your answer would be -2/5

Step-by-step explanation:

The value of the given expression is -2/5.

The given expression is [tex]\sqrt[3]{-\frac{8}{125} }[/tex].

How to solve cube roots?

In mathematics, the definition of cube root is written as Cube root is the number that needs to be multiplied three times to get the original number. Now, let us look at the cube root formula, where y is the cube root of x. ∛x = y.

Now, [tex]\sqrt[3]{-\frac{8}{125} }[/tex] can be written as [tex]\sqrt[3]{(-\frac{2}{5})^{3} }[/tex].

Here, cube and cube root will get cancelled.

We get -2/5

Therefore, the value of the given expression is -2/5.

To learn more about the cube roots visit:

https://brainly.com/question/3049993.

#SPJ2

What is the value of the expression shown?
407 - 16) + (-3)

Answers

Answer:

388

Step-by-step explanation:

i looked it up

Tonya pays $300 each month to rent an office where she earns $25 per hour tutoring students. Which equation represents Tonya’s profit, y, for working
x hours?

Answers

Answer:

y = 25x – 300

Step-by-step explanation:hope I helped

Solve the system using substitution: {y=5x-21 y=-7x+15

Answers

Answer:

code lazar

Step-by-step explanation:

Evaluate the expression for p= -3
64 - 9p
Enter only the simplified numerical value after substituting the
value for the variable and doing the math.

Answers

Answer:

The answer is 91.

Step-by-step explanation:

If p = -3, then your equation is 64 + (-9 × -3).

-9 times -3 is 27.

27 + 64 = 91

After you substitute the P you can go ahead and do the rest which will give you 91

10
Colin invests £1700 into his bank account.
He receives 10% per year simple interest.
How much will Colin have after 3 years?
Give your answer to the nearest penny where appropriate.

Answers

Answer:

£510

Step-by-step explanation:

Simple interest = (principal × rate × time) / 100

Principal = £1700

Rate = 10%

Time = 3 years

Simple interest = (principal × rate × time) / 100

= (1700 × 10 × 3) / 100

= 51,000/100

= 510

Simple interest = £510

please help me and show your work please ill mark you brainliest :)

Answers

Answer:

Step 1 and step 2

Step-by-step explanation:

she has to subtract 30 not add 30.

2(3x+6)=3(x-10)

6x + 12 = 3x-30

6x +12 - 12 = 3x - 30 - 12

6x = 3x - 42

6x - 3x = 3x - 42 - 3x

3x = -42

3x/3 = -42/3

x = -14

Answer:

B

Step-by-step explanation:

Hey There!

So the first thing we're going to do is solve it and then compare it to Maya's steps to see where she made the mistake

2(3x+6)=3(x-10)

step 1 distribute the 2 to whats inside of the parenthesis (3x+6)

2*3x=6x

2*6=12

now we have

6x+12=3(x-10)

step 2 distribute 3 to what's inside of the parenthesis

3*x=3x

3*-10=-30

we're left with

6x+12=3x-30

step 3 add 30 to each side

12+30=42

now we have

6x+42=3x

step 4 subtract 6x from each side

3x-6x=-3x

now we have

-3x=42

step 5 divide each side by -3

42/-3=-14

so x = -14

now lets compare our steps to maya's

as we look at the steps we notice that she messes up on step 2

when distributing 3 to -10

she gets positive 30 but its supposed to be -30

so we can conclude that she mad a mistake from step 1 to step 2

therefore the second one is your answer

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