solve this simultaneous equation by using substitution method 3x-2y=12 and x+3y=-7 ​

Answer:

Given - A triangle UTS

angle U = 43°

angle T = 103°

As we know that the side opposite to the largest angle is longest. angle T is longer so side opposite to it Us is longer

US , UT , TS

Answer:

x = 11°

Step-by-step explanation:

ΔABC ≅ Δ DEC

∠B ≅ ∠E

44° = 4x

x = 11°

Answer:

Grams

Step-by-step explanation:

Because we want to know the mass

Answer: grams (g)

Step-by-step explanation:

Answer:

Step-by-step explanation:

Step one:

given

We are told that 3 apples seels for $5

let us first find the selling price of 1 apple

an apple = 5/3

=$1.6

Required

Step two:

The selling price of 8 apples

if 1 apple sells for $1.6

then 8 apples will sell for

=8*1.6

=$13.30

Answer:

the rate at which the distance between the planes is changing is 825 each hour

Step-by-step explanation:

The computation of the rate at which the distance between the planes is changing is shown below

= Travelling one plane + travelling another plane

= 450 mph + 375 mph

= 825 mi each hour

Therefore the rate at which the distance between the planes is changing is 825  each hour

We simply applied the above formula so that the correct value could come

And, the same is to be considered

Answer:

the answer is a u s 4

Step-by-step explanation:

that the answer right there

Answer:

7.71 is the answer hope you get it

The division of 463 by 60 yields a quotient of 7 with a remainder of 43.

When we divide 463 by 60, we find:

              60  |   463  |  7

                         420

                      - ______

                            43

So, 463 ÷ 60 = 7 with a remainder of 43

The remainder is 43, which indicates that after dividing 463 by 60 as much as possible, there are 43 units left over.

So, the division of 463 by 60 yields a quotient of 7 with a remainder of 43.

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Answer:

Step-by-step explanation:

4 minuses give a plus

8/945

Answer:

Step-by-step explanation: Simplifying

2(3y + -5) + -2 = 3(y + -3)

Reorder the terms:

2(-5 + 3y) + -2 = 3(y + -3)

(-5 * 2 + 3y * 2) + -2 = 3(y + -3)

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

Reorder the terms:

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

Combine like terms: -10 + -2 = -12

-12 + 6y = 3(y + -3)

Reorder the terms:

-12 + 6y = 3(-3 + y)

-12 + 6y = (-3 * 3 + y * 3)

-12 + 6y = (-9 + 3y)

Solving

-12 + 6y = -9 + 3y

Solving for variable 'y'.

Move all terms containing y to the left, all other terms to the right.

Add '-3y' to each side of the equation.

-12 + 6y + -3y = -9 + 3y + -3y

Combine like terms: 6y + -3y = 3y

-12 + 3y = -9 + 3y + -3y

Combine like terms: 3y + -3y = 0

-12 + 3y = -9 + 0

-12 + 3y = -9

Add '12' to each side of the equation.

-12 + 12 + 3y = -9 + 12

Combine like terms: -12 + 12 = 0

0 + 3y = -9 + 12

3y = -9 + 12

Combine like terms: -9 + 12 = 3

3y = 3

Divide each side by '3'.

y = 1

Simplifying

y = 1

Answer:

89-6^2 = 53 so the third side is

[tex] \sqrt{53} [/tex]

Answer:

[tex]\sqrt{53}[/tex]

Step-by-step explanation:

Using Pythagoras' identity in the right triangle.

The square on the hypotenuse is equal to the sum of the squares on the other 2 sides.

let x be the third side, then

x² + 6² = ([tex]\sqrt{89}[/tex] )² , that is

x² + 36 = 89 ( subtract 36 from both sides )

x² = 53 ( take the square root of both sides )

x = [tex]\sqrt{53}[/tex] ← length of third side

Answer:

D, F, C

I hope this helps you out! :D

Answer:

A and E

Step-by-step explanation:

I have attached the graph of the problem.

Answer:

90%

Step-by-step explanation:

Answer:

90%

Step-by-step explanation:

30 is the old value and 57 is the new value. In this case we have a positive change (increase) of 90 percent because the new value is greater than the old value.

Answer:

Hesdfhjwebsdfjwefb

Step-by-step explanation:

sdfjhwefsjhbsdvdbhje

The length of the expert trail is 800 meters. We can find our answer by using given tape diagram and simple mathematical calculations.

What is tape diagram?

A tape diagram is a visual model resembling a piece of tape, that is used to assist with the calculations of ratios and addition, subtraction and commonly multiplication.

Here,

Length of the Beginner trail is 200 meters

And also expert trail is 4 times to Beginner trail.

So, Expert trail = 4 * Length of beginner trail.

     Expert trail = 4* 200

                        = 800 meters.

Hence, we get the answer.

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Answer:

B. 8, 000

Step-by-step explanation:

the total of people surveyed is 7+33+56+42+12= 150

4 or more are

12 out of 150  or

x out of 100,000

x=12*100,000/150

x= 8000

Answer:

k;p

Step-by-step explanation:

Answer:

(x² + 7x + 6) ÷ (x² + 2x + 1)

This should be in the form of a fraction, I just don't know how to format it that way on here.

Step-by-step explanation:

Since your denominators are equal on both fractions, you just need to subtract your numerators.

3x² + 9x + 12 - (2x² + 2x + 6)

When there is a - in front of an expression in parenthesis, you should change the sign of each term in the expression of the numerator being subtracted.

So this:

2x² + 2x + 6

Will become this:

2x² - 2x - 6

This is how it will look:

3x² + 9x + 12 - 2x² - 2x - 6

Now all you have to do is collect the like terms.

3x² and -2x² are like terms so you will add them together: 3x² + (-2x²) = 3x² - 2x² = x²

This is how your numerator should look so far:

x² + 9x + 12 - 2x - 6

Now we move on to the next like terms.

9x and -2x are like terms so we add them together: 9x + (-2x) = 9x - 2x = 7x

This is how your numerator should look so far:

x² + 7x + 12 - 6

Now we move on to the last set of like terms.

12 and -6 are like terms so we add them together: 12 + (-6) = 12 - 6 = 6

This is how your numerator should be now:

x² + 7x + 6

Now all you have to do is put your numerator on top of your denominator which is the same as in the start of your equation (x² + 2x + 1).

You are done! I hope this was clear and you understand :)

Answer:

(x² + 7x + 6) ÷ (x² + 2x + 1)

This should be in the form of a fraction, I just don't know how to format it that way on here.

Step-by-step explanation:

Since your denominators are equal on both fractions, you just need to subtract your numerators.

3x² + 9x + 12 - (2x² + 2x + 6)

When there is a - in front of an expression in parenthesis, you should change the sign of each term in the expression of the numerator being subtracted.

So this:

2x² + 2x + 6

Will become this:

2x² - 2x - 6

This is how it will look:

3x² + 9x + 12 - 2x² - 2x - 6

Now all you have to do is collect the like terms.

3x² and -2x² are like terms so you will add them together: 3x² + (-2x²) = 3x² - 2x² = x²

This is how your numerator should look so far:

x² + 9x + 12 - 2x - 6

Now we move on to the next like terms.

9x and -2x are like terms so we add them together: 9x + (-2x) = 9x - 2x = 7x

This is how your numerator should look so far:

x² + 7x + 12 - 6

Now we move on to the last set of like terms.

12 and -6 are like terms so we add them together: 12 + (-6) = 12 - 6 = 6

This is how your numerator should be now:

x² + 7x + 6

Now all you have to do is put your numerator on top of your denominator which is the same as in the start of your equation (x² + 2x + 1).

You are done! I hope this was clear and you understand :)

Step-by-step explanation:

Answer:

A is the answer when graphed the asym-ptote is y=0 so the the horizontal asym-ptote is y=0  

Step-by-step explanation:

Answer:

A.  There is a horizontal asymptote at y=0

Step-by-step explanation:

Answer:

y - 4 = 0

Step-by-step explanation:

They give you the y coordinate, 4, and the x coordinate as 0.

Put 4 in as y.

4 - 4 = 0. That means x = 0 and that is right.

To make sure it has a slope of zero, subtract 4 on both sides.

You get : y = 4. This means that the line will be straight and it will have a slope of zero.

Answer:

its a          y=3x-2

Step-by-step explanation:

Answer:

a

Step-by-step explanation:

Answer:

u=79

Step-by-step explanation:

68=u-11

add 11 to 68

u=79

Answer: 850

Step-by-step explanation: 6,000 divided by 12 = 500 + 350 = 850

The monthly rent is $850.

The correct option is d.

Combining objects and counting them as one big group is done through addition. In arithmetic, addition is the process of adding two or more integers together. Addends are the numbers that are added, and the sum refers to the outcome of the operation.

Given:

You have a net lease for $350 per month.

You are responsible for the taxes, which are $6,000 per year.

The monthly rent,

= Net lease + 6000/12

= 350 + 500

= $850

Therefore, $850 is the monthly rent.

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Answer:

No

Step-by-step explanation:

The photo provided doesn't necessarily prove that the diagonals bisect each other. It could be proven as a quadrilateral is the other line inside the shape had lines showing this as well.

Answer:the answer is no

Step-by-step explanation:

it dosent give enough info

Answer:

Step-by-step explanation:

x^2 + 6x + 8 = 0

(x + 4)(x + 2) = 0

x + 4 = 0

x = -4

x + 2 = 0

x = -2

The solution of quadratic equation by factoring is -4.

A quadratic equation is the second-order degree algebraic expression in a variable. the standard form of this expression is  ax² + bx + c = 0 where a. b are coefficients and x is the variable and c is a constant.

We are given that;

x^2+8=-6x

Now,

To solve the quadratic by factoring, we need to first write it in the standard form: x2+6x+8=0

Then we need to find two numbers that multiply to 8 and add to 6. These are 2 and 4. So we can write the quadratic as: (x+2)(x+4)=0

To find the solutions, we need to set each factor equal to zero and solve for x: x+2=0⟹x=−2

x+4=0⟹x=−4

So the solutions are x=−2

and x=−4

Therefore, by quadratic equations the answer will be -4.

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Answer:

51.75

Step-by-step explanation:

Please mark brainliest.

Answer:

15 percent of 45 dollars is  sixs dollars and seventy five cents so add that to the 45 dollars and the selling price is now $51.75

Step-by-step explanation:

im on one more brainliest pls mark me

Answer:

1.27 cents I bought chess today I drove with my car

Answer:

Mean costing =  $3,768

Step-by-step explanation:

Given:

Mean A(x) = 260

Rate = $10 per feet

Fixed charge = $1,168

Computation:

Assume;

depth = x ft

So,

Cost of company B = 10x + 1,168

So,

Mean costing = 10A(x) + 1,168

Mean costing =  10(260) + 1,168

Mean costing =  2,600 + 1,168

Mean costing =  $3,768

Using the normal probability distribution concept, the probability that Company B would charge more than Company A to drill a well is 0.4146

Company A :

Company B :

Equating the cost ;

3681 = 1168 + 10x

3681 - 1168 = 10x

2513 = 10x

x = 251.3

Company B will charge more than Company A when depth exceeds 251.3 feets

Using the Z - score relation :

P(X > 251.3) = (251.3 - 260) / 40

P(X > 251.3) = -0.2175

Using the normal distribution table :

P(Z > -0.2157) = 1 - P(Z < -0.2157)

P(Z > 0.2157) = 1 - 0.58539

P(Z > 0.2157) = 0.4146

Hence, the probability that Company B would charge more than Company A to drill a well is 0.4146

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