Mathematics High School

A and B are vertical angles. If mA=(7x-20° and mB =(6x-1)º, find the
measure of A.

Answers

Answer 1
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Answer 2

Answer:

[tex]\angle A=113\textdegree[/tex]

Step-by-step explanation:

We know that ∠A and ∠B are vertical angles.

Remember that vertical angles have the same measure. So:

[tex]\angle A=\angle B[/tex]

Substitute them for their equations:

[tex]7x-20=6x-1[/tex]

Solve for x. Add 20 to both sides:

[tex]7x=6x+19[/tex]

Subtract 6x from both sides. So, the value of x is:

[tex]x=19[/tex]

To find ∠A, we can use its equation again:

[tex]\angle A=7x-20[/tex]

Substitute 19 for 7:

[tex]\angle A=7(19)-20[/tex]

Multiply and subtract:

[tex]\angle A=133-20=113\textdegree[/tex]

So, the value of ∠A is 113°.

And we're done!

Related Questions

Find the number.round to the nearest tenth if possible.110%of 70

Answers

Answer:

77

Step-by-step explanation:

5/8 mile in 1/4 hour

Answers

Answer: 2.5 mph

Explanation:

4 x 5/8 = 2.5

j(x)=−45x+7; j(x)=−5

Answers

Answer:

x = 4/15

Step-by-step explanation:

Step 1: Define

j(x) = -45x + 7

j(x) = -5

Step 2: Substitute and Evaluate

-5 = -45x + 7

-12 = -45x

x = 4/15

PLZ NEED HELP ASAP. Find the missing values for the table.

Answers

Answer:

candy 7

packs 5

Step-by-step explanation:

Answer:

Option A!

Step-by-step explanation:

Hey there!

To figure out the ratio of candies per packs, we divide 21 (candy) by packs (3) and we get 7. This means that there are 7 candies per pack! So, in 1 pack, there are 7 candies and when there are 35 candies, we divide 35 by 7 and get 5.

So, in one pack there are 7 candies and there are 35 candies in 5 packs.

Option A. Candy: 7 Packs:5

If my answer helped, please rate it and give it a Thanks!

Have a great day!

The speed of an object can be found by taking the distance it travels and dividing it by the time it takes to travel that distance. An object travels 100 feet in 2.5 seconds let the speed, S, be measured in feet per second. True or false: the equation

Answers

Answer:

True the speed S in in Feet/second

Step-by-step explanation:

In this problem we are required to solve for the speed of an object.

given that the expression to solve for the speed is expressed as

speed= distance/time

given data

distance=100 feet

time=2.5 seconds

substituting our given data into the expression we can solve for speed as

speed (S)=100/2.5

S= 40feet/seconds

upon substituting our data the speed S was found to be 40feet/s

True the speed S in in Feet/second

I need help graphing 2x - 6y = 42 I'm just really lazy​

Answers

Answer:

We can use slope intercept form to get the points needed. Y= -7+1/3x The points are (0,-7) and (3,-6)

Step-by-step explanation:

Subtract 2x from the left side and place it over to the right side with the 42. Now we have -6y= 42-2x. From here we divide by -6 and we get y= -7+1/3x. We know that are slope is 1/3 which the one is the rise and the 3 is the run. We also know that our y intercept is -7. We plot the points at (0,-7) and (3,-6)

what is 20x+8 =4÷2 please help​

Answers

Answer:

- 0.3

Step-by-step explanation:

Step 1:

20x + 8 = 4 ÷ 2     Equation

Step 2:

20x + 8 = 2      Divide

Step 3:

20x = - 6      Subtract 8 on both sides

Step 4:

x = - 6 ÷ 20     Divide

Answer:

x = - 0.3

Hope This Helps :)

Answer:

x = - 3/10

Step-by-step explanation:

Hi !

20x + 8 = 4 : 2

20x = 2 - 8

20x = - 6

x = - 6/20

x = - 3/10

Good luck !

Aye yo help me plz!

1.) Which of the following equations is not a linear equation?
A) y = -4
B)X 3 = 1
C) 2x -4y =1
D) y= X - 2

2.) Find the value of y that makes the equation y= -x + 5 true, when x =-4

A.) -1
B.) 2
C.) 1
D.) 9

3.) Find the value of y that makes the equation y= x + 1/4 true, when x = - 1/4.

A.) -4
B.) 0
C.) 1
D.) 4​

Answers

Answer:

1) B

2) D

3) B

Step-by-step explanation:

For question 1:

Assuming that option B is [tex]x^3=1[/tex], it is not a linear function.

Linear functions have equations that do not have exponents.

For question 2:

[tex]y=-(-4)+5\\\\y=4+5\\\\\boxed{y=9}[/tex]

The option is D.

For question 3:

[tex]y=x+\frac{1}{4}\\\\ y=-\frac{1}{4}+\frac{1}{4}\\\\ \boxed{y=0}[/tex]

The option is B.

Hope this helps.

The area of a rectangle can be written as the sum of the areas of all its parts.What is a sum of the areas?

Answers

Volume

Volume is the quantity of three-dimensional space enclosed by a closed surface

What is the solution to the following equation?
1
—
3 (9-2y) = 5(2 - 3y) - 50

Answers

Answer:

y=(-3)

Step-by-step explanation:

I can add fractions with unlike denominators. 3/7 + 1/6 =​

Answers

Answer:

[tex]\frac{25}{42}[/tex]

Step-by-step explanation:

Find the LCM of 7 and 6: 42Alter the numerators, so they fit the denominators: 3 × 6 = 18, 1 × 7 = 7Re-write the fractions: 18/42 + 7/42[tex]\frac{18}{42} + \frac{7}{42} = \frac{25}{42}[/tex]  

I hope this helps!

Answer:

25/42

Step-by-step explanation:

first find a same denominator

18/42 + 7/42

then add the new fractions

18/42 + 7/42 = 25/42

Help me with problem 4 please

Answers

Answer:

Step-by-step explanation:

Solve by substitution method
X+ y = -5
y = x+3

Answers

Answer:

(x,y) → (x-5,y-3)

Step-by-step explanation:

Thats the awnser

Mika's rosebush had 24 blooms in the first week of May. This was 80% as many blooms as Tammy's rosebush had during the same period. How many blooms did Tammy's rose bush have?

Answers

Tammy’s bush would have 30 blooms. 80% of 30 is 24.

Find the volume of a cube if each side is 3.3 inches long. Do not round your answer.

Answers

35.937 inches cubed

To find volume: length x width x height

If the answer is right please consider marking branliest

PLEASE HELP WHOEVER ANSWERS FIRST GETS BRAINLIEST

Answers

Answer:

8

Step-by-step explanation:

Answer:

8 ft

Step-by-step explanation

8x4=32, 8 ft on all 4 sides.

There are 200 petals on 25 daises so what is the proportionality

Answers

Answer:

8 petals per daisy

Step-by-step explanation:

200/25=8

doesnt that mean there's an average of 8 petals on each 1 flower.

w: ( x, y) -> ( , )

​

Answers

Answer:

XD im confused  

Answer:

wth even is this lol, math..?!?!

Step-by-step explanation:

tony says,"josh will dance"(into indirect)​

Answers

“I will dance ” tony says

What is the slope of the line passing through the points (-3, 4) and (2, – 1)?

Answers

Answer:

m=-1 or -1/1 (same thing)

Step-by-step explanation:

(y2-y1/x2-x1)

(-1-4)/(2-(-3))=-5/5=-1

Answer:

-1

Step-by-step explanation:

The slope of a line can be written as [tex]\frac{\triangle{y}}{\triangle{x}}[/tex] or [tex]\frac{y_2 - y_1}{x_2-x_1}[/tex]. Plugging in the values gives us [tex]\frac{-1 - 4}{2 - (-3)} = \frac{-5}{5} = \boxed{-1}[/tex]

Solve for x: −3(x + 3) = −3(x + 1) − 5. (1 point) a 6 b −6 c All real numbers d No solution

Answers

D. No solution

1. Distribute -3s: -3(x + 3) = -3(x + 1)

2. Collect like terms: -3x - 9 = -3x - 3

3. Incorrect so no solution: 0 = 6

Answer:

no solution

Step-by-step explanation:

you know it

Write a compound inequality that is represented by the graph.
5
6
7
8
9
10 11 12
13 14
15
A compound inequality using the variable x is

Answers

Answer:

7<x<14

Step-by-step explanation:

Help me pleasee......

Answers

Answer:

∠ETM is 56.7

Step-by-step explanation:

168.7 - 112

help find the slope of the line

Answers

Answer:

-3/5

Step-by-step explanation:

When finding the slope, think of it as rise/run.

Rise= up/down

run=left or right

So looking at the line, it is pointing towards -inf so the slope is negative

Then we look at 2 points.

i.e. (0,2) and (-5,5) and do the rise over run technique (or just subtract) and you get your answer!

please help I'll mark as brainliest​

Answers

X would equal -45 (:

Step-by-step explanation:

-1.5x =9

-x=9/1.5

x=-6

please answer question 3

Answers

Answer:

2/6

Step-by-step explanation:

I think the answer is D; 2/6.

6≥−6(a+2) solve and find the awnser

Answers

Answer:

[tex] - 3 \geqslant a[/tex]

Step-by-step explanation:

[tex]6 \geqslant - 6(a + 2)[/tex]

distribute -6 inside the parentheses

[tex]6 \geqslant - 6a - 12[/tex]

add 12 to both sides

[tex]18 \geqslant - 6a[/tex]

divide by -6 to isolate the variable

[tex] - 3 \geqslant a[/tex]

Answer:

-3<=a

Step-by-step explanation:

1. Get the -6 away, so multiply everything by -6.  6*-6 >= -6*-6(a+2)

2. This becomes -1 <= a+2   Since if you multiply or divide anything by a negative number, you have to reverse the inequality sign.

3. Subtract 2 to get a by itself    -1-2 >= a

4. This becomes -3 >= a   which is the right answer.

(Just so you know >=  and <=  means less than or equal to and more than or equal to.)  

I have no idea how to do this lol i need help!!

Answers

JUST THE FIRST ONE:

1 is less than or equal to m, m is less than 6

Start your point at 1, with a closed circle going to the right

Second point, place at 6 with an open circle going to the left

3/4 -0.8 7/10 -3/4 from least to greatest

Answers

Answer:

-0.8 < -3/4 < 7/10 < 3/4

Step-by-step explanation:

theyre decreasing

Answer:

-0.8, -3/4, 7/10, 3/4

While shopping at a music store, Rick bought 7 CD’s, all at the same price. The tax was $6.50 and the total was $66.00. What was the price of each CD?

Answers

Answer:

$8.50

Step-by-step explanation:

Subtract the tax from the total price:

66 - 6.50

= 59.5

Then, divide this by 7 to find the cost of each CD:

59.5/7

= 8.5

So, the price of each CD was $8.50

Answer:

8.50

Step-by-step explanation:

66-6.50=59.50

59.50 divided by 7 =8.50

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