PLEASE HELP!!

solve

2x + 3y = 12
( 6x - y = 4 )

A. x = - 1 1/2, y = -13
B. x = 1 1/5, y = 3 1/5
C. x + 1 1/3, y = 4
D. x = 11, y = -3 1/3

Answer:

the answer isA

Step-by-step explanation:

3x+1+x²-6

=3x-5+x²

=x²+3x-5

Answer:

A

Step-by-step explanation:

Answer: the final answer is 1 4/5 or 9/5

Step-by-step explanation:

First:

Convert any mixed numbers to fractions.

Then your initial equation becomes:

3 3/4 turns into 15/4 and 2 1/12 turns into 25/12

Second: then flip the 2nd fraction so it becomes 12/25

now multiply straight across: 15/4 x 12/25

15 x 12=180

4 x 25=100

180/100= 9/5= 1 1/4

Simplest form of quotient of given fractions is 9/5.

The given fractions are [tex]3\frac{3}{4}[/tex] and [tex]2\frac{1}{12}[/tex].

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 of the second fraction. Next, multiply the two numerators. Then, multiply the two denominators.

[tex]3\frac{3}{4}[/tex] can be written as [tex]\frac{15}{4}[/tex] and [tex]2\frac{1}{12}[/tex] can be written as [tex]\frac{25}{12}[/tex].

Keep 15/4 and change division sign to multiplication sign and reverse the fraction 25/12 as 12/25.

That is , [tex]\frac{15}{4} \div \frac{25}{12} = \frac{15}{4} \times \frac{12}{25}[/tex]

[tex]=\frac{3}{1} \times \frac{3}{5} =\frac{9}{5}[/tex]

So, quotient = 9/5

Therefore, simplest form of quotient of given fractions is 9/5.

To learn more about the fractions visit:

https://brainly.com/question/10708469.

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Answer:

£7

Step-by-step explanation:

15×203_3[2

w820362

45

Answer:

Step-by-step explanation:

yo

The approximate distance Mike and Lilly will have to travel between halfway point and Library is 7.8 miles.

From the graph :

Meeting point = Halfway point :

(x1 + x2) /2 ; (y1 + y2) / 2

X - coordinate = (-4 + 2) / 2 = - 2/ 2 = - 1

Y - coordinate = (2 + (-2)) /2 = 0/2 = 0

Hence, meeting point = (-1, 0)

The distance between meeting point and library :

Distance = √[(x2 - x1)² + (y2 - y1)²]

Distance = √[(4 - (-1))² + (6 - 0)²]

Distance = √(25 + 36)

Distance = √61 = 7.8 miles

Therefore, the distance between halfway point and library ls approximately 7.8 miles

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Answer:

43°

(4x + 19)° = (6x + 7)° [vertically opposite angles are equal]

4x+19 = 6x+7

4x + 19 -7 = 6x

4x +12 = 6x

12 = 6x - 4x

12 = 2x

2x = 12

x = 12/2

x = 6

Now replace the x with 6

(4x+19)°

= (4×6+19)°

= (24+19)°

= 43°

(6x+7)°

= (6×6+7)°

= (36+7)°

= 43°

The measure of the angles is 43 degrees

Answer:

The answer is -20x+1y-5

Step-by-step explanation:

Answer:

The solution is 1

Step-by-step explanation:

(a^2)+b

(-2^2)+5

-4+5

1

Answer:

50+40/2=70

Step-by-step explanation:

mark me as brainliest

Answer:

The slope of the line. otherwise known as the gradient, can be found in the equation as the number in front of the x term.

In this case, it is - 1/2 (or -0.5, however you want to answer it)

Answer:

[tex](fog)(x) = - {x}^{2} + x + 9[/tex]

Step-by-step explanation:

[tex](fog)(x) = f(g(x)) \\ = - ( {x}^{2} - x - 4) + 5 \\ = - {x}^{2} + x + 4 + 5 \\ = - {x}^{2} + x + 9[/tex]

I hope I helped you^_^

Answer:

35000000000

Step-by-step explanation:

i used a calculator hope this helps

Answer:

do your self it is easy

Step-by-step explanation:

do your self it is easy

Answer:^3−28

Step-by-step explanation:

Answer:

g

have a great day ahead

please mark me as the brainliest

Answer:

[tex]31 - 26 = 36 - 31 = 41 - 36 \\ = 46 - 41 = 5 = d \\ yes \: it \: is \: an \: arithmetic \: sequence[/tex]

Step-by-step explanation:

option E is your correct answer.

hope this helps you.

Answer:

The answer I was able to get was 0.

Since the carts stick together and come to rest after the collision, the initial speed of the 3.0-kg cart is 12 m/s.

Given the following data:

To find the initial speed of the 3.0-kg cart, we would apply the law of conservation of momentum:

For a perfectly inelastic collision:

[tex]M_1V_1 - M_2V_2 = V_f(M_1 + M_2)[/tex]

When the carts stick together and come to rest after the collision, the final velocity is zero (0).

[tex]M_1V_1 - M_2V_2 = 0\\\\M_1V_1 = M_2V_2\\\\V_2 = \frac{M_1V_1}{M_2}[/tex]

Substituting the given parameters into the formula, we have;

[tex]V_2 = \frac{4(9)}{3}\\\\V_2 = \frac{36}{3}[/tex]

Initial speed = 12 m/s

Read more: https://brainly.com/question/23092552

Answer:

Step-by-step explanation:

d.) .7107

e.) .2185

Answer:

[tex]3b + 3 < - 18 \\ 3b + 3 - 3 < - 18 - 3 \\ 3b < - 21 \\ 3b \div 3 < - 21 \div 3 \\ b < - 7[/tex]

I hope I helped you^_^

Answer:

The inequality 14

Cecil had 14 boxes of lightbulbs when he started

I think not 100% sure

Step-by-step explanation:

Hope this helps :)

Answer:

The correct answer is 152

Answer:

z=35.1

Step-by-step explanation:

Answer:

z = 351/10 or z = 35.1

Step-by-step explanation:

*Add/subtract numbers: -49 + 851 = 802

z + 802 = 100 + 21z

*Subtract 802 from both sides

z + 802 - 802 = 100 + 21z - 802

*Simplify

z = 21z - 702

*Subtract 21z from both sides

z - 21z = 21z - 702 - 21z

*Simplify

-20z = -702

*Divide both sides by -20

- 20z/20 = - 702/- 20

*Simlify

z = 351/10 or z = 35.1

Answer:

5. [tex]6x^2 - x - 2[/tex]

6. [tex]9x^2 - 15x + 6\frac{1}{4}[/tex]

Step-by-step explanation:

5:

6:

Answer:

look below

Step-by-step explanation:

going left and right changes the x( first number in each parentheses)

going up and down changes the y (second number in parentheses)

going to the left by 9 means all the first numbers are going in the negative direction (-9)

going up by 12 means the second numbers are going in the positive direction (+12)

take all x values and add -9, take all y values and add 12

X (-15, 13)

Y(-5,12)

Z(-8, 15)

Answer:

Mega-cleaner

Step-by-step explanation:

cleaner per quart. Per means to divide.

Solve for clean-all

[tex]1 \frac{1}{2} \div 2[/tex]

convert from a mixed number to an improper fraction. 2 x 1 + 1 = 3/2. make 2 a fraction 2/1

[tex] \frac{3}{2} \div \frac{2}{1} [/tex]

keep chang flip

[tex] \frac{3}{2} \times \frac{1}{2} [/tex]

multiply

[tex] \frac{3}{4} [/tex]

Mega -cleaner

[tex]3 \frac{1}{2} \div 4[/tex]

make an improper fraction and make 4 a fraction

[tex] \frac{7}{2} \div \frac{4}{1} [/tex]

keep change flip

[tex] \frac{7}{2} \times \frac{1}{4} [/tex]

multiply

[tex] \frac{7}{8} [/tex]

compare 3/4 and 7/8. find common denominators which is 8. change 3/4 to 8ths by multiplying by 2

[tex] \frac{3}{4} \times \frac{2}{2} = \frac{6}{8} [/tex]

7/8 is bigger than 6/8

Answer:

Step-by-step explanation:

The rule says that when the bases are the same (both are the same -- s) and they are divided with different powers then you subtract the power on the denominator from the power on the numerator.

s^9 ÷ s^4

s^9 is the numerator

s^4 is the denominator

s^(9 - 4)

s^5