Mathematics Middle School

PLSSS help, i will give brainliest!!!

Answers

Answer 1

Answer:

Answer A

Step-by-step explanation:

180° = 84° + (x + 46)°

(x + 46)°= 180° - 84°

x = 180° - 84° - 46° = 50°

(2x + 31)° = 131°

which means the next angle to it equals 180° - 131° = 49°

and as we know if we add up a triangle's angles it equals 180°

so the last unknown one is 180° - 84° - 49° = 47°

then a° = 180° - 47° = 133°

Answer 2

Answer:

A) 133°

Step-by-step explanation:

First, we solve for x.

84+x+46=180

130+x=180

x=50

Now, we plug that into 2x+31

2(50)+31=131

Then, 180-131 gives us an interior angle of 49.

Now we have two interior angles and can solve for the third.

180-84-49=47

Then we can find a by subtracting that from 180

180-47=133

Related Questions

Xin recorded the grade-level and instrument of everyone in the middle school School of Rock below.

Answers

Answer:

13/35

Step-by-step explanation:

Probability determines the likelihood of an event happening.

Since we are not looking at the 7th Graders list, let's focus on the list on 8th Graders.

Given:

8th grade

Guitar - 4 students

Bass - 13 students

Drums - 13 students

Keyboard - 5 students

Since we are trying to find the probability of an eighth grader chosen at random to play the drums, let's turn our attention to how many students actually play the drums.

13 students play the drums.

In order to find the probability of a student chosen at random who plays the drums, we have to find how many students play the drums (which we already found) out of the total amount of students there are in that grade/section. Summing up, probability = the amount of favorable cases divided by the amount of possible cases.

Let's use this formula:

P(A) = n/N

Where "P(A)" stands for the probability of the event "A". And "n" represents the # of favorable outcomes and "N" represents the # of total possible outcomes.

Let's find how many students are in 8th grade now by adding all the people who play the musical instruments together:

4 + 13 + 13 + 5

= 35 possible outcomes.

Now let's plug it into the formula:

P(A) = n/N

P(A) = 13/35

13/35 can simplify any further.

The probability of choosing a student who plays the drums at random is 13/35.

Base your answer to the following question on the following maps and your knowledge of civics:

Two maps of the presidential election results from 2008 are shown. One map shows results by county. The land area of counties won by Republicans is greater than the land area of counties won by Democrats. Another map of Presidential election results by state. Approximately half of the states show Democrat winner, and the other half show a Republican winner. Red areas are focused on center of country.
© 2011 University of Michigan. Creative Commons License

What do these maps tell you about the 2008 election?

The Democrats won the most electoral votes in the election.
The Republicans won the most electoral votes in the election.
The Republicans won the majority of southern U.S. states.
The Democrats won in the majority of U.S. counties.Base your answer to the following question on the following maps and your knowledge of civics:

Two maps of the presidential election results from 2008 are shown. One map shows results by county. The land area of counties won by Republicans is greater than the land area of counties won by Democrats. Another map of Presidential election results by state. Approximately half of the states show Democrat winner, and the other half show a Republican winner. Red areas are focused on center of country.
© 2011 University of Michigan. Creative Commons License

What do these maps tell you about the 2008 election?

The Democrats won the most electoral votes in the election.
The Republicans won the most electoral votes in the election.
The Republicans won the majority of southern U.S. states.
The Democrats won in the majority of U.S. counties.

Answers

The Republicans won the most electoral votes in the election.

Interpreting the presidential election using the map description

From the question, we have the following parameters that can be used in our computation:

Description by county:

Land areas won by Republicans is greater than those won by Democrats.

Description by state:

Democrat winner = approximately half

Republican winner = approximately half

The above means that

The republican won the election

This is because;

When calculated by states, they have the same proportionWhen calculated by county, Republican hold more votes

Hence. The Republicans won the most electoral votes in the election.

Answers

1) 2.79+2.25=5.04
2)2.25-1.69=0.56
3)32 times 1.99=63.68
4)11 times 3.95= 43.45
5)49.59 divided by 9=5.51
6)60.48 divided by 12=5.04
7)13 times 2.25=29.25
8)2.25-1.29=0.96
9)1.29+1.99+3.95+2.90=10.13
10)1.29+1.69+1.99+2.25+2.79+3.29+3.95+2.90=20.15

What's the answer to this?

Answers

Answer:

5/6

Step-by-step explanation:

√ if 1/2 test = 3/5hour

? = 1hour

√ 1/2test*1hour÷3/5hour

√ 1/2 test hour÷3/5hour

√ 1/2÷3/5test

√ 1/2*5/3 test

√ 5/6 test or 0.83333....

Which is the AREA of the composite figure?

— 672 cm
— 864 cm
— 936 cm
— 1,200 cm

Answers

ANSWER: 864
First you do 12 times 12 that is 144 then you divide it by 2 because it is a triangle
Then 12 times 44 and get 500 something and divide it by 2 because it is also a triangle and get 264 then you subtract 56 and 12 and get 44 and times that by 12 and get 528 then you add up all the numbers and should get 864

thr answer is 864 because

please help Im in class and I need someone to solve this for all my 41 points

Answers

They would save 5.9%

James has a set of five solar planets and Ben has a set of six smaller solar planets each set of planets produce the same amount of energy at 3 of games is planets are produced are on and producing energy for events are on and producing energy whose solar planets are producing more energy explain

Answers

Answer:

bens

Step-by-step explanation:

Step-by-step explanation:

If E is the amount of energy that each full set of panels produces, then ...

3 of james's 5 panels produce 3/5E

4 of Ben's 6 panels produce 4/6E

We can compare these fractions when they have a common denominator.

3/5E = 18/30E . . . . energy from James's panels

4/6E = 20/30E . . . energy from Ben's panels

18/30 < 20/30 . . . . so Ben's panels are producing more energy

If James has 5 and and Ben has 6, that’s 12 then divide that by 3 and it’s 4. Ben

17 POINTS
Solve the following absolute value inequality

Answers

Answer:

x ⩽ -7

x ⩾ -11

Step-by-step explanation:

5|x+9| ⩽ 10

To find the absolute value, we need to consider the negative value.

-10 ⩽ 5(x+9) ⩽ 10

Multiply inside the parenthesis with 5.

-10 ⩽ 5x + 45 ⩽ 10

Subtract 45 from all expressions.

-55 ⩽ 5x ⩽ -35

Divide the expressions with 5.

-11 ⩽ x ⩽ -7

-11< (or equal to) x <( or equal to) -7

aka
x>-11
x<-7

i don't really get this and i don't have time to get it sooo can someone help? also there's one more problem after

Answers

Answer:

1) 172.8 square yd

2) 195.6 square in

Step-by-step explanation:

1) (6*6) + 4(0.5*6*11.4)=36+136.8=172.8

2) (0.5*8*6.9)=27.6

0.5*8*14=56

56*3=168

168+27.6=195.6

172.8. Square yard
195.6 square inch

Tell how many terms the expression has.

200 plus left parenthesis 5 times 3 right parenthesis minus 30 plus 3

There is/are term(s).

Answers

Answer:

There are 4 terms in the expression 200+(5∗3)−30+3. The terms are 200, 5×3, −30, and 3.

A term is a single number or variable, or a product or quotient of numbers and variables. In this expression, each of the numbers 200, 5, 3, and −30 is a term. The product 5×3 is also a term.

The terms are separated by addition and subtraction signs. The expression is evaluated by performing the operations in parentheses first, then the multiplication and division, and finally the addition and subtraction.

Step-by-step explanation:

Someone please help! Answers from 1-12 because I'm not sure if I got the ones I answered right

Answers

Answer:

Step-by-step explanation:

Find the missing length, m

Answers

6 because if you do m=4/3 times the bottom number

The missing length would for m would be 6

7+4+ c to the 2 power -5c when c=8

Answers

Answer:

Step-by-step explanation:

7+4+c^2-5c=

11+8^2-(5*8)=

11+64-40=

Answer:

When c=8, 7+4+c^2-5c becomes 7+4+(8^2)-(5*8)=7+4+64-40=71.

Is there anything else I can help you with?

Step-by-step explanation:

find the area of the shape below
it is year 7 work can someone help i'll give em 50points for it

Answers

The area is 198.5cm sq

The shape can be divided into a circle of

5cm radius

as diameter is 10cm

radius = d/2

and a rectangle of 12×10 cm dimensions

length is 22-( 2×5) 12cm

and breadth is 10cm

The area of the circle is pi(r square)

which is 3.14×25

= 78.5 cm sq

The area of the rectangle is l×b

which is 12×10

= 120 cm sq

The total area is thus

area of rectangle plus area of circle

which is 198.5cm sq

To learn more about area, please refer

https://brainly.com/question/12736119?utm_source=android&utm_medium=share&utm_campaign=question

and

https://brainly.com/question/18363334?utm_source=android&utm_medium=share&utm_campaign=question

What is the surface area of the square pyramid? This includes the square base.

Answers

ANSWER: 360
Why because 6*6*10 is 360
How I got the other 6 is its equivalent to the other side

I think the answer may be 156

what is the value of x

Answers

2x + 10 + 5x + 10 + 90 = 180 (add up all the angles and since it’s a triangle it must equal 180)
7x = 70 (add the like terms)
x = 10 (divide both sides by 7)

90+(2x+10)+(5x+10)= 180
110+7x=180
7x=70
x=10

30 POINTS! ANSWER THE QUESTION SHOWN IN THE IMAGE WITH CLEAR ANSWER

Answers

X=(a-y)/2, x=b-y
Y=a-2x, y=b-x

X=2x+y-a*4
Find like terms
Y=6-4- (-3)* 3/5
Then see what’s the same or look at what is similar. If a letter is by itself, it equals one

Which equation is shown by the model? Responses A 56 × 14 = 524 5 6 × 1 4 = 5 24 B 56 × 14 = 624 5 6 × 1 4 = 6 24 C 56 × 14 = 520 5 6 × 1 4 = 5 20 D 56 × 14 = 610 5 6 × 1 4 = 6 10 Question 2 Choose all of the equations that are correct. Responses A 34 × 15 = 320 3 4 × 1 5 = 3 20 B 47 × 23 = 821 4 7 × 2 3 = 8 21 C 27 × 25 = 412 2 7 × 2 5 = 4 12 D 35 × 12 = 47 3 5 × 1 2 = 4 7 E 13 × 57 = 521 1 3 × 5 7 = 5 21

Answers

Answer:

The answer is A.

Step-by-step explanation:

The answer is A because 5/6 x 1/4 = 5/24

No it’s B not A it’s B B B B B B B B B B B B B B B

Can anyone help me with these questions?
Circumference of a circle ( Pi )

Answers

Answer: It is solved! :)

Step-by-step explanation:

1. 18.85 or 18.9 if rounded

2. 31.42

3. 6.28

4. 25.13

5. 31.42

6. 18.85

7. 6.28

8. 43.98 or 44

9. 94.25 or 94.3

10. 12.57 or 12.6

I will show work with my answers (PLEASE MARK ME BRAINLIEST I SPENT 2 HOURS )

INFO: Here is the formula I will be using: C = 2 • π • r OR R = D ÷ 2 (some questions I will use diameter to find radius). (C = Circumference, π = a Greek letter used to represent a large number, r = radius is the line extending from the middle to the end, D is diameter, [] = separation).

1) C = 2 • π • 3 [] C = 18.84956

2) R = 10 ÷ 2 = 5 [] C = 2 • π • 5 [] C = 31.41593

3) R = 2 ÷ 2 = 1 [] C = 2 • π • 1 [] C = 6.28319

4) R = 8 ÷ 2 = 4 [] C = 2 • π • 4 [] C = 25.13274

5) C = 2 • π • 5 [] C = 31.41593

6) R = 6 ÷ 2 = 3 [] C = 2 • π • 3 [] C = 18.84956

7) C = 2 • π • 1 [] C = 6.28319

8) R = 14 ÷ 2 = 7 [] C = 2 • π • 7 [] C = 43.9823

9) C = 2 • π • 15 [] C = 94.24778

10) R = 4 ÷ 2 = 2 [] C = 2 • π • 2 [] C = 12.56637

—————

Please remember to revise this and make it in your own words if you want! I hope this helps you. -Doodle

—————

what could the answer be? I'll give brainliest!

Answers

Answer: 1.5 paintings

Step-by-step explanation:

If he can make 0.75 paintings in 2.5 hrs:

2.5 ---> 0.75

5 ----> (5 x 0.75)/2.5 = 1.5 paintings

1.5 applie the x and y

A 7-ounce bottle of glue costs $1.22. What is the unit price, rounded to the nearest cent?

Answers

The unit price of the glue is $0.17 per ounce.

0.17 is the answer. You divide 1.22 by 7. Since the answer is 0.174, you will remove the 4 and leave the .07 alone.

ASAP! answer question down below please and thank you!

Answers

Answer:

105 square inches

Step-by-step explanation:

area of a triangle = 1/2( base * height)

The base is 5 and the height is 8.

= 1/2 ( 5 *8)

= 1/2(40)

= 20

The area of each triangle = 20 sq inches

So 4 triangles x 20 sq inches each = 80 sq inches.

The area of the square is 5 x 5 = 25 sq inches.

Add them together.

80 + 25 = 105 square inches

The answer is 105 btw

free brainliest whoever helps me!!!

Answers

Answer:

Yes, you are correct. The correct answer is -2.

Step-by-step explanation:

If you do that equation you will get -2 so you are correct.

which is the AREA of the composite figure?

sorry about the drawing, i tried as hard as i could to draw it correctly

— 672 cm

— 864 cm

— 936 cm

— 1,200 cm

Answers

I don't really understand because the picture doesn't match the measurements.

HELP ME
Drag the tiles to the correct boxes to complete the pairs. Not all tiles will be used.
Match each equation to the value of a that makes the equation true.

Answers

Answer:

that's the answer I think

The answer is
1
3
0
2.

Hope this helps

−1/5÷20 as a fraction

Answers

Answer:

1/100

Step-by-step explanation:

I used a calculator…

Answer:

- 1/100 or you could use -0.01 instead

A salesperson uses a circle graph to represent shoe sales for one year. The central angle for the portion of the graph that represents running shoes measures 80°. If 200 running shoes were sold, how many shoes were sold?

Thanks! :)

Answers

Answer:

900. Give Braylist

Step-by-step explanation:

I'm right

To solve the problem, we can use proportions. Since the central angle for running shoes is 80 degrees, we know that the ratio of running shoes sold to total shoes sold is 80/360. This is because the total number of degrees in a circle is 360. Therefore, we can set up the proportion:

80/360 = 200/x

where x is the total number of shoes sold. Solving for x, we get:

x = (360 * 200)/80

x = 900

Therefore, the total number of shoes sold is 900.

Number line with open circle on 9 and shading to the left.
Which of the following inequalities best represents the graph above? (3 points)

a) x < 9

b) x > 9

c) x ≤ 9

d) x ≥ 9

Answers

Your answer is: x < 9

Answer:

a) x<9

Step-by-step explanation:

Since x is all the numbers less than 9, but not including 9 (since it's an open circle instead of a filled in one), then:

a) x<9

Please help, I will give Brainliest.

Answers

Answer:

The Correct answer is A

The first option

Step-by-step explanation:

baseball only=18-x

basket ball only=17-x

let the number that play both baseball and basketball be x

30=18-x+17-x+x

30=35-x

-5=-x

x=5

baseball only

=18-x=18-5=13

basketball only

=17-x=17-5=12

The correct answer would be A

Answer pleaseeeeeeeee

Answers

I believe the answer will be C

The answer is C. 4^16

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