Kimmie solves the follow expression, looking at her steps, explain her mistake.
3x (3+ 12 = 3)-4
3x (15 = 3)-4
3x5-4
15-4
11

Step-by-step explanation:

I am doing the same math and I have no idea one nobody is helping me :/ there just looking at my problem and saying the wrong number :((

Step-by-step explanation:

Given

5(3x-4)-6(2x+3)

= 15x - 20 - 12x - 18

= 3x - 38

Answer:

A+6+A = 20

A = 7

Step-by-step explanation:

J = number of problems Juana completed

A = number of problems Andy completed

J+A=20

J = A + 6

Replace J with A+6 in the first equation

A+6+A = 20

2A +6 = 20

Subtract 6 from each side

2A +6-6 = 20-6

2A =14

Divide by 2

2A/2 = 14/2

A = 7

Answer:

7

Step-by-step explanation:

set up your two equations.

j + a = 20. equation 1

j = a + 6. equation 2

since you know that j = a + 6, you can substitute a + 6 into the place of j. this is because you want to isolate a in order to find out how many problems andy completed.

j + a = 20

a + 6 + a = 20

now solve.

2a + 6 = 20

2a = 14

a = 7

andy has completed 7 problems. if juana completed 6 more than andy, then she has completed 13. 13 + 7 = 20.

Answer:

the answer should be (3,-2)

Answer:

The first option.

Step-by-step explanation:

Step-by-step explanation:

[tex]105 (2 \times - (11)[/tex]

Answer:

Step-by-step explanation:

Desde el concepto de conservación de la energía mecánica, es decir, la energía asociada con el movimiento coherente de un objeto, la energía cinética del objeto, junto con su momento, están conectadas entre sí. Entonces, si un bloque rueda sobre un plano irregular, tiene pérdida de energía mecánica, esto significa que la energía cinética se compensa con las ganancias o pérdidas de la energía potencial de la interacción del objeto.

Answer:

1/3a = -5

1=3a×-5

1=-15a

a=-1/15

Answer:

a=-15

Step-by-step explanation:

1/3a = -5

1/3(*3)a=-5*3

a=-15

Answer:

x = 32

Step-by-step explanation:

-9 = x - 41

41 + (-9) = x -41 + 41

32 = x

Answer:

4/4 quarters

Step-by-step explanation:

hope this will help you

Answer:

2 quarts

Step-by-step explanation:

based on the model there are 4 cups in 1 quart so there will be 8 cups in 2 quarts

Answer: Choice D

s^2 = 9^2 + 10^2 - 2(9)(10)cos(100)

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Explanation:

Consider the pythaorean theorem

a^2 + b^2 = c^2

which is the same as saying

c^2 = a^2 + b^2

If we tack on "-2ab*cos(C)", then we end up with

c^2 = a^2 + b^2 - 2ab*cos(C)

which is one form of the law of cosines. The side c is opposite angle C, and the two are on opposite sides of the equation. The 'a's and 'b's are on the right side with the angle C.

Note if C = 90 degrees, then cos(C) = cos(90) = 0 which means the whole "-2ab*cos(C)" term goes to 0 and we'd be left with the pythagorean theorem again.

In this case, we replace c with s, replace 'a' with 9, replace b with 10, and C with 100.

Answer:

Option (4)

Step-by-step explanation:

Cosine rule states,

(UT)² = (SU)² + (ST)² - 2(SU)(ST)cos(∠UST)

Here, UT is the opposite side of angle UST and two sides SU and ST are the adjacent sides.

∠UST is the included angle between SU and ST.

By this formula,

s² = 9² + 10² - 2(9)(10)cos(100°)

Therefore, Option (4) will be the answer.

Answer:

the picture has the answer (4y , 2.5x)

Step-by-step explanation:

Answer:

y = 7

Step-by-step explanation:

Locate x = - 5 on the x- axis, go vertically up to meet the graph at (- 5, 7)

Thus when the input is x = - 5, the output is y = 7

Answer:

x=−3

Step-by-step explanation:

2(6x+1)−4(x−5)=−2

Step 1: Simplify both sides of the equation.

2(6x+1)−4(x−5)=−2

(2)(6x)+(2)(1)+(−4)(x)+(−4)(−5)=−2(Distribute)

12x+2+−4x+20=−2

(12x+−4x)+(2+20)=−2(Combine Like Terms)

8x+22=−2

8x+22=−2

Step 2: Subtract 22 from both sides.

8x+22−22=−2−22

8x=−24

Step 3: Divide both sides by 8.

8x/8=−24/8

Answer:

0

Step-by-step explanation:

-10+ + 10

-10+10

0

Answer:

each jump rope costs 4 dollars

12÷3=4

Answer:

$4

Step-by-step explanation:

Divide: 12 divided by 3=4

Hope this helped!! :)

Stay safe and have a wonderful day/night!!!!!

Brainliest?!?!

Answer:

part A:

If ABC is a triangle then,

2x+4+2x-9+x=180degree

or, 5x-5=180degree

or, 5x=(180+5)degree

or, 5x= 185degree

or, x=185÷5 = 37degree ans.

PartB

now put the value of x in angle A

i.e angle A = 2x-9

or, angle A= (2×37) - 9

or, angle A= 74 - 9

therefore, angle A= 65degree ans.

Answer:

x and p equal 92 and y equals 88

it's 88.1 x 10 to the power negative 2

and

0,0881

Step-by-step explanation:

88.1÷1000=0,0881

Answer:

8aa

Step-by-step explanation:

Answer:

8aa is the correct answer of this question

Answer: Generally, the algebraic expression should be any one of the forms such as addition, subtraction, multiplication and division. To find the value of x, bring the variable to the left side and bring all the remaining values to the right side. Simplify the values to find the result.

Answer:

equal the equations

(x+20)=(2x-10)

then answer the equation

Step-by-step explanation:

Answer:

Slope = 2

Step-by-step explanation:

Do rise/run, this one rises up 2 and the run is 1 and 2/1 is 1. Rise/run is usually only necessary for small numbers.

Answer:

What are you asking?

Step-by-step explanation:

The domain of the given expression is all real numbers.

The domain and range are defined for a relation and they are the sets of all the x-coordinates and all the y-coordinates of ordered pairs respectively. For example, if the relation is, R = {(1, 2), (2, 2), (3, 3), (4, 3)}, then:

Domain = the set of all x-coordinates = {1, 2, 3, 4}

Range = the set of all y-coordinates = {2, 3}

The given function is v(x) =(18-2x)(24-2x)(x).

The domain of the expression is all real numbers except where the expression is undefined. In this case, there is no real number that makes the expression undefined.

Interval Notation: (-∞, ∞)

Set-Builder Notation: {x|x∈R}

Therefore, the domain of the given expression is all real numbers.

To learn more about the domain and range visit:

brainly.com/question/28135761.

#SPJ2

Answer:

11^5

Step-by-step explanation:

11^5 because your multiplying 11 by itself 5 times

Answer:

x=40°

Step-by-step explanation:

Every triangles area equals 180

75+65=140

180-140=40

Answer:

40

Step-by-step explanation:

All angles in a triangle add up to 180°.

65° + 75° + x° = 180

140° + x° = 180°

-140          -140

x° = 40°

Answer:

12x + 18y

Lets first write the quantity "two x plus three y", this means, that we have x and y as unknowns. x is 2 times, so we have 2x; and y is 3 times, so he have 3y:

2x + 3y

Additionally we have that this quantity is six times, what means that it is multiplied by a number 6:

6(2x +3y)

If you like, we can apply the distributive property that means that given any three numbers a, b, c we have that a(b+c)=ab + ac. In our case a is 6, b is 2x and c is 3y. Thus, operating:

6(2x +3y) = 6*2x + 6*3y = 12x + 18y

So, "six times the quantity two x plus three y" is 12x + 18y

Step-by-step explanation:

Answer:

6(2x+3y)

Step-by-step explanation: