Mathematics Middle School

The measures of the angles in △ABC are given by the expressions in the table.

Angle Measure
A 65°
B (3x−10)°
C ​​​​(2x)∘
Find the value of x. Then find the m∠B and m∠C.

Answers

Answer 1

Answer:

180-65=3x-10+2x

180-65+10=3x+2x

125=5×

25=x

AngleB= 3•25-10=65

AngleC= 2•25=50

Step-by-step explanation:

Related Questions

I NEED HELP PLEASE!!!! It's due

Answers

The answer would be A: 45, this is true because you need to look at it from a logic perspective and not only that but think within the box instead of outside because the answer is within their choices

Write an equation: Six more than five times a number is negative twenty

Answers

Answer:

Let n = the number

5x + 6 = 2x - 9

3x = -15

x = -5

Step-by-step explanation:

6+5•x=-20 or try 6+5x=-20

Write the recursive formula for each geometric sequence
11. 1, 7, 49, 343, ...

Answers

Answer:

11.1,7,49,343, 365

Step-by-step explanation:

answer:an=an-1•7
plug the answer into the formula i’m not entirely sure this is the answer

PLS HELP ASAP GIVE BRAINLIEST TO PERSON WHO ANSWER CORRECTLY

Answers

Answer:

B.) , ratio of 20:1C.) , There are 11 costumers per tower and 11000 costumers in total

Step-by-step explanation:

Please mark brainliest...

multiply each value of the C. by 1,000 to get the # of C.s divide the # of C.s / T.s this gives you C.s per T.Convert to ratio formatthere is on average 15 to 20 C.s per T.5250/273 = 14.0756250/325 = 19.2307250/377 = 19.2309250/273 = 19.230    6250  =  y  

             377        572

    2.  multiply both sides by 572

    3. 572 .  6250 = y

                   377

   4. divide known pair

572 x 19.230 = y

   5. solve for y

   6. y = 10999.56

   7. divide y value by 1000

   8. 10.99956

   9. round to the nearest whole #

   10. There are 11 costumers per tower and 11000 costumers in total  

URGENT!!!!!


For numbers 7a. – 7c., determine whether each statement is true or false using the transformation rule (x,y)→(x, -y)


7a. The transformation is a rotation.


7b. The transformation is a reflection.


7c. The transformation forms a congruent figure.

Answers

7a- true

7b- false

7c- true
7a. True
7a. False
7b. True

The point P(3,5) is rotated 90° clockwise about the origin. What are the coordinates of P'?
A. P'(-3,-5)
B. P'(5, -3)
C. P'(-5, 3)
D. P’(5,3)

Answers

C. Might be the answer to yr question
i think the answer is c

1.) Mr Rick can eat 12 dove chocolates every time Mr. Jones eats 7.

2.) Mr. Jones and Mr. Brown had a hot dog eating contest. For every 3 hotdogs Mr. Jones ate, Mr. Brown could eat 5. What is the ratio to Mr. Brown and the total hot dogs in all?

Answers

Answer:

12:7 and 5:8

Step-by-step explanation:

first one just put the 2 together and the second one you have mr. brown and then the second number add the 2

12:7 and 5:8 that’s the anwser

!!!(URGENT)!!! What is the surface area of this figure

Answers

Answer:

36 inches

Step-by-step explanation:

if you unfold the triangular prism and find the area of each individual shape, all you have to do is add them up:

Area Of Rectangle = WL

Area Of Triangle = 1/2(HB)

5x2=10

4x2=8

3x2=6

(4x3)1/2=6x2=12

10+8=18+6=24+12=36

Help please, my brains is empty :o(

Answers

Answer:

I think 5 and 5 are equal so the angles are equal which are 70,70

Step-by-step explanation:

70+70+x=180

140+x=180

x=40

Find the area of the region bounded by the line y=3x-6 and line y=-2x+8.

A: the x-axis.
B: the y-axis.
C: the line y=6
D: the line x=5.

Please provide the answer and the explanation pls, the explanation is what matters the most. Thank you and have a great day!

Answers

Answer:

A = 12/5 units

Step-by-step explanation:

USING ALGEBRA:

We can find the intersection point between these two lines;

y = 3x - 6

y = -2x + 8

Set these two equations equal to each other.

3x - 6 = -2x + 8

Add 2x to both sides of the equation.

5x - 6 = 8

Add 6 to both sides of the equation.

5x = 14

Divide both sides of the equation by 5.

x = 14/5  

Find the y-value where these points intersect by plugging this x-value back into either equation.

y = 3(14/5) - 6

Multiply and simplify.

y = 42/5 - 6

Multiply 6 by (5/5) to get common denominators.

y = 42/5 - 30/5  

Subtract and simplify.

y = 12/5

These two lines intersect at the point 12/5. This is the height of the triangle formed by these two lines and the x-axis.

Now let's find the roots of these equations (where they touch the x-axis) so we can determine the base of the triangle.

Set both equations equal to 0.

(I) 0 = 3x - 6  

Add 6 both sides of the equation.

6 = 3x

Divide both sides of the equation by 3.

x = 2  

Set the second equation equal to 0.

(II) 0 = -2x + 8

Add 2x to both sides of the equation.

2x = 8

Divide both sides of the equation by 2.

x = 4

The base of the triangle is from (2,0) to (4,0), making it a length of 2 units.

The height of the triangle is 12/5 units.

Formula for the Area of a Triangle:

A = 1/2bh

Substitute 2 for b and 14/5 for h.

A = (1/2) · (2) · (12/5)

Multiply and simplify.

A = 12/5

The area of the region bounded by the lines y = 3x - 6 and y = -2x + 8 between the x-axis is 12/5 units.

3. Julie uses 4 green beads and 6 blue beads in each bracelet she makes. What is the total number of green beads Julie will use when she uses 24 blue beads? Show or explain how you got your answer.

Answers

The answer is 16

exsplain:
24 divided by 6= 4
4x4=16
For every 6 blue beads Julie used she used 4 green and she made 4 brackets so times 4x4 getting you to 16! Hope this helps

The solution is 16 green beads Julie will use when she uses 24 blue beads.

What is division?

Division is the process of splitting a number or an amount into equal parts. Division is one of the four basic operations of arithmetic, the ways that numbers are combined to make new numbers. The other operations are addition, subtraction, and multiplication.

here, we have,

given that,

Julie uses 4 green beads and 6 blue beads in each bracelet she makes.

Julie will use when she uses 24 blue beads

we have to find the total number of green beads Julie will use when she uses 24 blue beads

so, we have,

4 green beads and 6 blue beads in each bracelet

i.e. green beads : blue beads = 4 : 6

now. let, x green beads Julie will use when she uses 24 blue beads

i.e. green beads : blue beads = x: 24

we get,

4 : 6  = x: 24

so. x = 4 * 24 / 6

24 divided by 6= 4

4x4=16

we get,

For every 6 blue beads Julie used she used 4 green and she made 4 brackets so times 4x4 getting you to 16

Hence. 16 green beads Julie will use when she uses 24 blue beads.

To learn more on division click:

brainly.com/question/21416852

#SPJ2

Need help wasn't there for a lesson

Answers

These are linear equations, so there is x and y. On number one the first thing they plotted was (3,8) so in a function table the 3 would be on the left side and the 8 would be on the right side. I’ll leave you with the rule of the first one, if the rule is times 2 plus to the how would you put it in a function table.

The first thing that you would put into the function table on the first question would be as I said earlier 3 and then 8. The rule is the rate. Using a function table will be very helpful (That’s why I keep mentioning one). Let me know if this helps.

pls help due today or ill fail

Answers

Answer: Ok so I may be wrong but I got 84ft

Step-by-step explanation: The bottom looks like a rectangle so it would be 4 times 12. 4 times 12 equals 48. since the height is 4 it would be 10-4 which equals 6. 6 Times 12 divided by two equals 36. 36 plus 48 is 84.

please help with them all i will give you brainliest

Answers

I don't want to tell you all the answers but, question 7 is 30 and question 8 is 47.

The floor of the entryway to an office building will be triangular. Two angles of the triangle will measure 40°, and the side between them will have a length of 8 meters. Make a scale drawing of the entryway using a scale of 1 cm : 2 m. Explain how you made your drawing.

Answers

Answer: The drawing in the attached figure

Step-by-step explanation: we know that

An isosceles triangle, has two equal sides and two equal interior angles

In this problem, the floor of the entryway to an office building is in the shape of an isosceles triangle

step 1

Find the measure of the vertex angle

Remember that

The sum of the interior angles in any triangle must be equal to 180 degrees

so

Let

x ---> the measure of the vertex angle of triangle

step 2

Find the length of the congruent sides of triangle

Applying the law of sines

Let

c ----> the length of one congruent side

we have

substitute

solve for b

step 2

Make a scale drawing of the entryway

The scale drawing is 1 cm : 2 cm

That means

1 cm in the drawing represent 2 cm in the actual

or

1 cm in the drawing represent 0.02 m in the actual

Find the dimensions in the drawing

For a=8 m

For b=5.22 m

step 3

Draw the triangle

The drawing is attached

Find the area of the region bounded by the line y=3x-6 and line y=-2x+8. For each of the given situations, find the AREA of the bounded region, the answer is not A, B, C, or D, I need to solve the answer for that case. (For example, C, it says the line y=6. I need you to find the area of the bounded region when the line y is 6 and intersects the 2 other lines.)


A: the x-axis.

B: the y-axis.

C: the line y=6

D: the line x=5.


Please provide the answer and the explanation pls, the explanation is what matters the most. Thank you and have a great day!

Answers

It’s going to be
The line y=6

The model below represents an equation. Write the equation that is modeled then find what value of x makes the equation true.
HELP HELP HELP PLZ PLZ

Answers

Answer: x=-6

Step-by-step explanation:

Equation: 5x+2=6x+8

X=-6 to check just plug in the value of x to see if it equals

Which statement about ocean water density is true? (Science)

a) Ocean water that is lower in temperature and has a lower salinity has a higher density.

b) Ocean water that is lower in temperature and has a higher salinity has a lower density.


c) Ocean water that is lower in temperature and has a higher salinity has a higher density.

d) Ocean water that is higher in temperature and has a higher salinity has a lower density.

Answers

Answer:C

Step-by-step explanation:

The answer is C I am sure

Jayne bought between 2 and 3 pounds of granola. If the amount of granola she bought was closer to 2 pounds, what is a possible mixed number that could represent the amount she bought?

Answers

Answer:

2 1/4 pound of granola.

Step-by-step explanation:

Imagine a dollar. There's always 4 quarters in a dollar. One is 25 cents of 1/4 of a dollar. Two quarters is 50 cents of 1/2 of a dollar. Three quarters is 75 cents or 3/4 of a dollar and 4 quarters is a whole dollar.

please help me with these two

Answers

Answer:

D

Step-by-step explanation:

The model below represents an equation. Write the equation that is modeled then find what value of x makes the equation true. HELP PLZ PLZ PLZ PLZ

Answers

Equation: 6x-5=4x+5
Answer: x=5

Help me plz lol there may be more

Answers

Answer:

I think the answer is B

Step-by-step explanation:

I’m pretty sure it’s b

There are 90 total days in winter. If it snowed 30% of the days, on how many days did it snow?
Please add an explanation I will mark you as Branliest, please help

Answers

Answer:

o your questions about snow: Is it ever too cold to snow? ... No, it can snow even at incredibly cold temperatures as long as there is some source ... area of the United States, see the average snowfall total table for hundreds of ... Seven days? ... Finally, a Winter Weather Advisory is issued for accumulations of snow

Step-by-step explanation:

You answer is pretty easy it is 60

A TV has listed a price of $723.98 before tax. If the sales tax rate is 9.25%, find the total cost of the TV with sale tax included. Round your answer to the nearest cent, as necessary

Answers

Answer:

Step-by-step explanation:

$723.98 x 0.0925= $66.96815

$723.98+$66.97= $790.95

Round up to $791

your total would be 791$

What are all the subsets?

Answers

Answer:

The answer is rational irrational and natural if you got it wrong I am sorry I am in middle school I am in 8th grade I'm new at this and I don't have time to switch it up because I don't know if this is a quiz that has been timed for you

Please help

How many points of intersection does this system have?
Y= 3x-4
-3x+y=4
A. Zero points of intersection
B. One point of intersection
C. Two points of intersection
D. An infinite number of points of intersection

Answers

A. Zero points of intersection

the lines are parallel

Answer:

A

Step-by-step explanation:

HELP MEEEEEEE!!!!!!!!!!!!!!!!!!!!!!!!

Answers

Answer:

r = 20

Step-by-step explanation:

Answer:

20

Step-by-step explanation:

hey i am not smart but what is
[tex]83\frac{1}{3} minus \frac{2}{3}[/tex]

welp pls ;v;

Answers

It would be 82 2/3 since 1/3 minis 2/3 would equal -1/3 you subtract that from 83 and get 82 2/3

Answer:

82 2/3

Step-by-step explanation:

I just subtracted them :) Hope this helps :)

Terry is making meatballs for a family dinner. He needs ground turkey and ground beef to make the meatballs.

Ground turkey costs $4.50 per pound. Terry buys 2.6 pounds of ground turkey.

1. What is the total cost, in dollars, for 2.6 pounds of ground turkey? Show or explain how you got your answer.

Answers

It will be $11.70 for 2.6 pounds and to find the answer is to multiply $4.50 x 2.6 and you get $11.70
1 pound=$4.50
⬇️/2
0.5 pounds=$2.25
⬇️/5
0.1 pounds=$0.45

4.5+4.5+2.25+0.45=11.7=2.6 pounds
Answer=$11.70

Can someone please help me

Answers

Answer:

80=2x2x2x2x5

Step-by-step explanation:

2 just goes all the way down

80-2/40

40-2/20

20-2/10

10-2/5

80=2x2x2x2x5

80=2x2x2x2x5 is the answer
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