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Which pairs of angles are supplementary?

-6x-2y=42

x-y=-15

Multiply x-y=-15 by 6 ( eliminate the x first)

6(x-y)=6(-15)

(6)(x)=6x

(6)(-y)=-6y

6(-15)=-90

-6x-2y=42

6x-6y=-90

eliminate x the systems of equations by subtracting

-6x+6x-2y+-6y=42-90

-2y-6y=42-90

-8y=-48

divide both sides by -8 to get y by itself

-8y/-8=-48/8

y=6

Find x by substitution method

use y=6 into one of the system of equations

x-y=-15

x-6=-15

move -6 to the other side

sign changes from -6 to +6

x-6+6=-15+6

x=-15+6

x=-9

answer:

(-9,6)

Answer:

Percent increase from 2000 to 2001 is 12% and from 2001 to 2002 is 12.6%. Thus period of 2001 to 2002 has higher increase percentage.

Solution:

Given that,

Total circulation of local newspaper in 2000 = 3250

Total circulation of local newspaper in 2001 = 3640

Total circulation of local newspaper in 2002 = 4100

Finding percent of increase in the newspaper’s circulation from 2000 to 2001:

Finding percent of increase in the newspaper’s circulation from 2001 to 2002:

As we can see 12% < 12.6%

So period of 2001 to 2002 has higher increase

Answer:

Katherine is a nurse and has 15 feet of bandages. One of her patients was injured and needed 1/9 of the bandages she had. How many feet of bandages did she use on her patient?

Step-by-step explanation:

Answer x=6 and y=10

Explanation:

Replace each variable in turn with 0 and solve

5x+3y=30  Put zero in place of x and solve for y

5(0)+3y=30

[tex]\frac{3y}{3} =\frac{30}{3}[/tex]

y=10 The y- intercept is 10

5x+3y=30 Put zero in place of y and solve for x

5x+3(0)=30

[tex]\frac{5x}{5} =\frac{30}{5}[/tex]

x=6  The x-intercept is 6

Answer:

5.3f

Step-by-step explanation:

***If you found this answer please press the heart button and mark me brainliest, thanks!***

Answer:

Add 9 to both sides

General Formulas and Concepts:

Pre-Algebra

Step-by-step explanation:

Step 1: Define equation

4n - 9 = 23

Step 2: Solve for n

Answer:

100v

Step-by-step explanation

v-100

v+100

100v

Answer:

2

Step-by-step explanation:

(1/2)(6x-2) - 3(x-1)

take the (1/2) and distribute it to the 6x and the 2

(3x-1) - 3(x-1)

next, distribute the 3 to the x and the 1

(3x-1) - (3x-3)

then you simplify

3x-3x cancels

-1 - -3 is the same as -1 +3

so you get 2

Answer: b

Step-by-step explanation:

B

Answer:

The American Revolutionary War (1775–1783), also known as the American War of ... Britain remained under siege in Gibraltar but scored a major victory over the French navy. ... in America, and the colonial legislatures argued that they had exclusive right .... Howe then seized control of New York City on September 15

Step-by-step explanation:

Answer:

12 degrees is the correct answer.

Step-by-step explanation:

please award brainliest I'm trying to move up in rank

Answer:

2.8

Step-by-step explanation:

From the similarity ratio we can calculate the missing side length for the smaller rectangle

and when we add all side lengths the answer is 2.8

Answer:

11

Step-by-step explanation:

Answer:22(a)

Step-by-step explanation:22 is a factor of 66

prolly D

..............................

The distance between the point JM will be 4.81 units.

In science and math, the centroid of a planar figure or firm figure, also known as the point of intersection or center of the figure, is the mean absolute position of all of the other points on the subject's surface.

The centroid of the triangle is given as,

(x, y) = [(x₁ + x₂ + x₃) / 3, (y₁ + y₂ + y₃) / 3]

Use the coordinates J(7, 8), K(1, 2) and L(5, 2) for △JKL. Then the centroid for △JKL is at point M is given as,

(x, y) = [(7 + 1 + 5) / 3, (8 + 2 + 2) / 3]

(x, y) = (13/3, 12/3)

(x, y) = (13/3, 4)

Then the distance between the point JM is calculated as,

D² = (13/3 - 7)² + (4 - 8)²

D² = 7.1111 + 16

D² = 23.11

D = √23.11

D = 4.81 units

The distance between the point JM will be 4.81 units.

More about the centroid of the triangle link is given below.

https://brainly.com/question/10708357

#SPJ2

Answer:

x = 6

Step-by-step explanation:

measure of angle E: 5(6) + 8 = 38

measure of angle D: 6(6) + 8 = 44

measure of angle C:  180 - 82 = 98

check answers by adding all 3 angle measures to make sure they equal 180 degrees  

Answer:

15 and 10 miles

Step-by-step explanation:

one half of 30 = 15

two thirds of 15 miles =10 miles

For every hour he works over 40 hours, he is paid an additional $7.50.

Ray’s error when he miscalculated his overtime pay is +$45.

Suppose the actual value and the estimated values after the measurement are obtained. Then we have:

Error = Actual value - Estimated value

His normal pay is $15/h

150%/100 = 1.5

Multiply his normal pay by the rate in decimal form;

$15 X 1.5 = $22.5

His OT pay is $22.5/h.

Additional money = (OT pay) - (Normal pay)

= $22.5 - $15

= $7.5

Or $7.5 = $7.50

Thus, For every hour he works over 40 hours, he is paid an additional $7.50.

Ray actual pay for the week was $100 then from the question he incorrectly calculated it as {$100 + $45} = $145 which is $45 above his actual pay.

Error = measured value - actual value.

Error = $145 -$100 =$45.

Since the value $145 is greater than his actual pay $100, we have to include a positive sign to the error $45.

Therefore, Error = +$45.

Learn more about this concept here;

https://brainly.com/question/14497100

#SPJ6

Answer:

x +5

Step-by-step explanation:

5x-2+3x+4+2x+9

5x-2x=3x

3x-3x=x

-2+2=0

0+4=4

4-9 =5

Answer:

The solution of the system of equations is (-8,3).

Step-by-step explanation:

Given that:

3x + y = -21      Eqn 1

x + y = -5        Eqn 2

First of all, we will subtract Eqn 2 from Eqn 1

(3x+y)-(x+y)=-21-(-5)

3x+y-x-y=-21+5

2x=-16

Dividing both sides by 2

[tex]\frac{2x}{2}=\frac{-16}{2}[/tex]

x=-8

Putting the value x=-8 in Eqn 2

-8+y= -5

Adding 8 on both sides

-8+8+y= -5+8

y=3

Hence,

The solution of the system of equations is (-8,3).

Answer:

A. p=3-2h

h=9-p

Step-by-step explanation:

Justin buys 3 less than twice as many hot dogs

Answer:C

Step-by-step explanation: You want to add up all the marbles, and then take the red marbles and divide by all the marbles 7/20

243

3 to the power of 4 is 81 times 3 is 243

Answer:

3^5

Step-by-step explanation:

3^4*3

Multiplying exponents

2.1    3^4  multiplied by  3^1   = 3^(4 + 1) = 3^5

Hope this helps!

Brain-List?

Answer:

20x5

Step-by-step explanation:

Answer:

lol

Step-by-step explanation:

I'm freaking Latino

I hope this helps you

Answer:

the last option of 135°.

Step-by-step explanation:

The total degree of the rectangle is 360°. But it was sliced, so with the remaining measurements, subtract each of them from 360°.

90°+90°+45°+x°=360°

225°+x°=360°                 add all of the values on the left side, then subtract 225 on both sides to solve for the value of x°.

x°=135°

Answer:

always

Step-by-step explanation:

no matter what the angles of a rectangle will be 90 degrees so the answer is always

Answer:

Step-by-step explanation:

Consecutive angles are equal only when dealing with a square or a rectangle. All other 4 sided figures do not have this property.

So the answer is sometimes.