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'LL GIVE BRAINLIEST

Answers

Answer:

i think a triangle

Step-by-step explanation:

Help please! I have no idea how to solve this! Due by 8:00 pm

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Answer:

no solution

Step-by-step explanation:

What do we help with ??

If you walk 3 kilometers in 30 minutes, what is your average speed in kilometers per hour?

Answers

Answer:

If you walk 3 kilometers in 30 minutes your average speed is 6 kilometers per hour.

Therefore, the avearge speed in kilometers per hour is [tex]0.1[/tex] kilometer per hour.

What is the speed?

The speed of an object is the magnitude of the change of its position over time or the magnitude of the change of its position per unit of time; it is thus a scalar quantity.

Here given that,

Here, you walk [tex]3[/tex] kilometers in [tex]30[/tex] minutes. So the average speed is :-

Speed = Distance/ Time

Distance is [tex]3km[/tex] and the time is [tex]30[/tex] minutes so,

[tex]S=\frac{3}{30}\\\\\\S=0.1[/tex]

Hence, the avearge speed in kilometers per hour is [tex]0.1[/tex] kilometer per hour.

To know more about the speed

https://brainly.com/question/28633890

#SPJ6

Help! Click to see question!

Answers

Answer:

B.

Step-by-step explanation:

Both equations use x squared

Answer:

The common facor is x-3.

Step-by-step explanation:

The first expression can be factored with a difference of squares, x+3 and x-3. You can check that by multiplying them together to get x²-9. Knowing that you need a common factor, one that works for both expressions, you can immediately eliminate A and B. The second expression, x²-5x+6, has to share one of these two factors. To factor this, you find the numbers that multiply to the c term and add to the b term. (Ax²+bx+c) so b is -5 and c is 6. All you have to do is find out which two numbers add to -5 and multiply to 6. You start with factors of 6, which are +-6 and +-1, and +-3 and +-2. Say you try 6 and 1 first. The b term is negative, so these two added have to add to a negative number, which means positive 6 and positive 1 won´t work. The only way to add to -5 is to add 1 to -6 or -6 to 1, but multiplying those together gives you -6, and you need positive 6 in the c term. That leaves you with -2 and -3. they add to -5, and multiply to -6, which means that your common term is x-3. Test this by expanding your result, (x-2)(x-3), if you get the original expression theyre both factors.

The scale of a drawing is 3 cm : 15 m. What is its scale factor?

Answers

Answer:

1cm=5m or 3:1500

Step-by-step explanation:

5 cuz 15 divided by 3 is 5

i need help with this asapppp

Answers

Answer:

540

Step-by-step explanation:

Answer:

It is 563.

Step-by-step explanation:

7 + 7 = 14 and 20 + 20 = 40. 40 x 14 = 560 but 14.075 x 40 = 563. So therefore it is 563

I'LL GIVE BRAINLIEST: Which measurements could create more than one triangle?
A. A triangle with sides measuring 5 inches, 7 inches, and 9 inches,

B. A triangle with sides measuring 8 cm and 12 cm and an included angle measuring 85°.

C. A triangle with sides measuring 50mm and 35mm and a non-included angle measuring 25°.

D. A triangle with sides measuring 5cm, 10cm, and 15 cm.

Answers

C, It needs 50mm and 35mm.

Answer:

ya its c

only one that makes sense

Step-by-step explanation:

Please help and give an explanation please.

Answers

Answer:

For number one Adam got the better deal because marco is paying a dollar more for .25 oz of worms. For number two you would need 6 1/4 pints of yellow paint to make the certain shade of paint.

Step-by-step explanation:

Explanation was in Answer. Hope I helped.

The area of a triangular prism is 18inches squared. We know the height is 9.5in. What is base a, b, and c?

Answers

Answer: step by step calculation, formula & solved example

problem to find the area for the given values of base b, & height h of triangle in

inches (in), feet ... Learn how we & our partners collect & use data. ... (1/2) x Base

x Height substitute the values = (1/2) x 18 x 12 = 108 cm2. The area of a triangle

The multiplication table below can be used to find equivalent ratios.

Which ratio is equivalent to StartFraction 8 Over 6 EndFraction?
StartFraction 3 Over 24 EndFraction
StartFraction 24 Over 32 EndFraction
StartFraction 32 Over 24 EndFraction
StartFraction 24 Over 3 EndFraction

Answers

Answer:

c

Step-by-step explanation:

3/24 = 3/3*8 = 1/8

24/32 = 4*6/4*8 = 6/8

32/24 = 4*8/4*6 = 8/6

24/3 = 3*8/3 = 8/1 = 8

Answer:

c

Step-by-step explanation:

I WILL GIVE YOU BRAINLIEST IF YOU HELP ME WITH THIS MATH WORKSHEET (1/2)

Answers

Answer:

Step-by-step explanation:

1) corresponding angles

2)alternate interior angles

3)alternate interior angles

4)corresponding angles

2x-7=123

2x=130

x=65

5)corresponding angles

6x-11=5x

6) alternate interiot

40=14-2x

26=-2x

-13=x

Yes^that answer is correct ^

Kyle is 4 times older than liam. in six years kyle will be 2 times older than liam. how old are they now?
PLS HELP ASAP!!!!!

Answers

9 and 18
They were 3 and 12 six years ago because 12/3= 4 and 3+6=9 and 12+6=18 and 18/9=2
9 and 18 they were 3 and 12 last year

Lamont purchased a sweater that was on sale for 25% off.
Which expression represents the amount that Lamont paid for the sweater if x represents the original price of the sweater?

Answers

y= x*0.025
hope this helps!!
The correct answer would be y=0.75x because 0.25x is how much money she saved while 0.75x is how much she still had to pay for the sweater

HELP ME BEST ANSWER GETS 10 POINTS AND BRAIN LIEST

Choose the correct answer.

A.>
B.<
C.=
D.We can't compare them.

Answers

Where’s the question?
What is the question?

Help please. And thank you

Answers

The answer is 4 that one.

Answer:

There are about 4 gallons (3.96258)

Step-by-step explanation:

Look at the liters and do a conversion.

Jung-Su's father gave him $144. Jung-Su bought 4 books, each of which cost $9. How much money does Jung-Su have left?

Answers

Answer:

$108

Step-by-step explanation:

9+9+9+9=36

144-36=108

lol

$108 you multiply 4•9=36. Then do 144-36 which equals 108.

PLS HELP ASAP THESE ARE ALL MY POINTS!!!!

parallelogram has an area of 1 1/8 yd². Use the formula A = bh to find the length of the base, b.

A. 3/2

B.2/3

C. 27/32

D. 32/27

Lola needs 3/4 cup of oats to make one batch of muffins. How many batches can she make with 1 1/2 cups of oats?

A. 1/2

B. 2

C. 8/9

D. 9/8

Answers

Answer:

A    (for the oats and muffin one)

Step-by-step explanation:

no.

I need help with this preferably the answer.

Answers

Answer:

s= students

Step-by-step explanation:

1. 22 + 4/9s

2. 35 - 5/9s

3. 28 + 4/9s

A clothing store pays $15 for a shirt. The percent of markup is 85%. Find the selling price.


A.
$27.00


B.
$16.28


C.
$15.85


D.
$27.75

Answers

B
is the answer, hoped that helped my friend

For which polygon is the sum of the interior angles equal to 720?
quadrilateral
pentagon
hexagon
septagon

Answers

Answer: Hexagon

Explanation: Just trust me ;)
Hexagon is the answer

A roller coaster starts by ascending 15 feet for every 75 feet it moves forward. The
coaster starts at a point 30 feet above the ground. Write the equation of the line that
the roller coaster travels along in point-slope form, and use it to determine the height of
the coaster after traveling 500 feet forward. Assume that the roller coaster travels in a
straight line for the first 500 feet.
I

Answers

Answer:

B

Step-by-step explanation:

Simplify. Please show your work.
3a+10b+4a-4b



Solve the equations below for x. Please show your math work step by step.
Part (a): x+(-3)=7 Part (b): 2x-2=-12





Solve the equation for m. Please show your math work step by step.
2(m + 6) = 24




Mikey solved the inequality problem below incorrectly. Explain her error and redo the problem showing the correct answer.
Original problem: -4x+8<32
Mikey’s math work: -4x+8-8<32-8
-4x÷-4<24÷-4
x<-6

Answers

Answer:

Question 1: add 3a + 4a becuase they have the same variables. you should get 7a. Then subtract 10b and 4b because they have the same variables,You should get 6b. The answer is 7a+6b because you can't do anything with those numbers because of their variables and how they are not the same.

Question 2: The answer is x=10. to get the answer move all terms not containing x to the right side of the equation and add as normal.

Question 3: The answer is -5. Steps: move the equation around so there is a 2 on both sides of the equation, should look like this: 2x= -12 +2. Then add -12 +2 = -10. Then divide each term by 2 and simplify, should look like this: 2x/2 = -10/2. Then cancel the comments factor which is 2 should look like this: x = -10/2. After divide x by 1. Then divide -10 by 2 which equals -5.

Question 4: The answer is m=6. First multiply 6x2=12 then multiply that by 2 which should get u 24 then divide 24 by 4 =6

Question 5: sry I dont understand :(

Answer:

1. 7a+6b because 3a+4a=7a and 10b-4b=6b

2. x=10 because you add 3 to the other side to cancel it out and 7+3=10

3. x=6 because

2*m=2m and 2*6=12

24-12=12 and 12/2=6

Step-by-step explanation:

What is the measure of angle 7?

Answers

Answer: 115

Step-by-step explanation:

Answer:

the answer is 115

Step-by-step explanation:

Can someone help me out? (serious answers only)

Answers

The answer is D -60.

Answer:

40

Step-by-step explanation:

Good Luck

Two Florida panthers were weighed. One weighs 6x + 21 pounds and the two together weigh 14x + 11 pounds. How much does the other panther weigh alone?
plz plz help i beg i will givebrianlist

Answers

Answer:

36.86

Step-by-step explanation:

Answer:

i cant answer this because it doesnt really make any sense but some  guy said 36.86 or something like that

i hope hes right

Step-by-step explanation:


HELP PLEASE ITS DUE IN 10 MINUTES

Answers

Easy. A would be correct
A is the correct answe

Giving brainliest!!!!!!!
Civics I meant

Answers

b. it just makes the most sense to me, i passes my civics eoc with a 5
Your answer is B. The other ones are not real rights. Have a good one!!

What is the rate of change from year 2 to year 7?

Answers

It would be 6 feet because 4 + 6 = 10

Help please, due very soon

Answers

its blurry cant see anything reallly

Answer:

I’ve done this before so the answer is

Step-by-step explanation:

On a recent math quiz, Georgia got 35 out of 40 questions correct. Rounded to the nearest percent, what was Georgia's score on this quiz?

Answers

Answer:

80%

Step-by-step explanation:

Answer

(87.5) rounded would be 88

Step-by-step explanation:

35/40 divid eatch side by 2 to get 17.5/20 now the fraction can go into 100 eveanly. 20x5=100 and 17.5x5=87.5. 87.5/100

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