Mathematics Middle School

Find the value of x.

Answers

Answer 1

Answer:

x=25

Step-by-step explanation:

In the △,

all the 3 angles add up to 180°

So,

(2x+15)°+x°+90°=180°

3x°+105°=180°

3x°=180°-105°

3x°=75°

x=75°÷3°

x=25

Related Questions

Which expression is equivalent to 1-51 + 13/?
-8
-2
Ο Ο Ο Ο
2
8
HURRY

Answers

The answer is 8 because |-5| make it an absolute value making it just a 5+3

The answer is 8 That’s the correct answer

7.2.4 Practice Math 6th grade
Find the measure of YOZ. What angle relationship did you use?

Answers

Answer:

60 degrees

Step-by-step explanation:

ang. XOV=XOW+WOV --> Parts whole Postulate

90=VOW+30, VOW=60 --> Substitution and Algebra

YOZ=60 degrees --> Vertical angle theorem

Make sure to put the degree sign!

The answer to ur questions is 60°

Sarah was helping her mom plant flowers and together they planted 48 seeds. If they put 6 seeds in each flower bed, how many flower beds did they have?

Answers

Answer:

They have 8 flower beds

Step-by-step explanation:

Answer:

they would have had 8 flower beds.

Step-by-step explanation:

we know that there are 48 seeds and 6 seeds were planted in each flower bed, so we can do 48 ÷ 6 to get the answer of 8.

I need help !!!!!!!!!!!!!!!!!!!!

Answers

Answer:

8|6

32|24

16|12

4|3

400|300

56|42

Step-by-step explanation:

ANSWER FOR BRAINLIEST

Answers

Answer:

x = 8

Step-by-step explanation:

In a triangle, the sum of the interior angles is 180 degrees.

So, for this triangle 180 = 100 + 48 + (5x - 8)

Now let's simplify this down to isolate x. Start by adding 100 and 48.

180 = 148 + (5x - 8)

Now subtract 148 from both sides.

32 = 5x - 8

Add 8 to both sides.

40 = 5x

Divide both sides by 5.

x = 8

Answer:

Step-by-step explanation:

HELP HELP HELP A quadratic function models the graph of a parabola. The quadratic functions, y = x2 and y = x2 + 3, are modeled in the graphs of the parabolas shown below.

Determine which situations best represent the scenario shown in the graph of the quadratic functions, y = x2 and y = x2 + 3. Select all that apply.

From x = -2 to x = 0, the average rate of change for both functions is negative
For the quadratic function, y = x2, the coordinate (2, 3) is a solution to the equation of the function.
The quadratic function, y = x2 + 3, has an x-intercept at the origin
The quadratic function, y = x2, has an x-intercept at the origin
From x = -2 to x = 0, the average rate of change for both functions is positive
For the quadratic function, y = x2 + 3, the coordinate (2, 7) is a solution to the equation of the function.

Answers

Answer:

From x = -2 to x = 0, the average rate of change for both functions is negative

The quadratic function, y = x2, has an x-intercept at the origin

Step-by-step explanation:

Tisha and her academic team are working to go to state finals. They must have a certain number of points, T, to advance. They have had three local matches, b, c and d, and will attend a district match. District match points count for four times the number of points than local matches do. Choose the equation that would help Tisha find how many points they need to earn in the district match, a, to advance. a equals T over 4 minus b minus c minus d a equals T minus b minus c minus d all over 4 a equals T plus b plus c plus d all over 4 a = 4(T − b − c − d)

Answers

4.0/5

Ashraf82

b equals T minus a minus c minus d all over 3 ⇒ 3rd answer

Step-by-step explanation:

* Lets explain how to solve the problem

- Tisha and her academic team have had three local matches

# Assume that the points of the local matches are a , c , d

- They will attend a district match

- District match points count for three times the number of points

than local matches do

# Assume that the points of the district match is b

- T is the total points they will earned in the four matches

∵ The points in the local matches are a , c , d

∵ The point in district mach is 3b

∴ T = a + c + d + 3b

* Lets find b in terms of a , c , d , T

∵ T = a + c + d + 3b

- Subtract a from both sides

∴ T - a = c + d + 3b

- Subtract c from both sides

∴ T - a - c = d + 3b

- Subtract d from both sides

∴ T - a - c - d = 3b

ANSWER FOR BRAINLIEST :)

Answers

64° + 76° + (2x+14)° = 180° (angle sum of triangle)

140° + 2x+14° = 180°

2x=180 ° - 14 ° -140°

2x=26°

x=13°

Answer:

x = 13

Step-by-step explanation:

the sum of the triangle angles always adds up to 180 degrees, otherwise it is not a triangle.

64 + 76 = 140

180 - 140 = 40.

therefore, the last angle must equal 40 degrees.

2 * x + 14 is the equation we need to us to get to 40 degrees.

40 - 14 = 26

26 / 2 = 13

therefore, x equals 13

now, is we want to check our answer to make sure it is correct,

2 * 13 + 14 = 26 + 14

26 + 14 = 40

76 + 64 = 140

180 - 140 = 40

therefore, it works.

good luck my friend!

What is an equivalent fraction of 69
6
9
with denominator 189

a.
1269
126
9

b.
6189
6
189

c.
126189
126
189

d.
105189

and the second question

What is an equivalent fraction of 1520
15
20
with numerator 195

a.
195260
195
260

b.
19520
195
20

c.
15260
15
260

d.
13260

Answers

6/9 = 126/189. 15/20 = 80/195 :)

126/189 and 80/195 I believe

Help meeeee! ASAP I WILL MARK BRAINLIEST

Answers

Answer:

Step-by-step explanation:

What is the main reason for living things to go through the process of cellular respiration? *

to produce water
to produce energy
to produce carbon dioxide
to produce oxygen

Answers

Answer:

to produce energy

SORRY IF IM WRONG

::::::)

Step-by-step explanation:

It to produce energy

50 points
Start at the origin. Move 5 units right and 10 units up. What is the ordered pair at this point?
Answers:
a
(5, 5)
b
(5, 1)
c
(5, 10)
d
(10. 5)

Answers

C 5 10 it’s stars bhhhhhhhhhhhh

If I animated 4 frames in 6 minutes how many frames will I animate in 12? (Will give branliest for whoever explains it the best!)

Answers

Answer:

8 frames

Step-by-step explanation:

6*2=12, so

4*2=8

If a 23-ounce box of cereal costs $2.89, what should a 30/ounce box cost?

Answers

Answer:

$3.77

Step-by-step explanation:

We can find the unit cost in dollars per ounce.

$2.89 / 23 oz = $0.1256/oz

Now we multiply the unit cost by 30 oz.

$0.1256/oz * 30 oz = $3.76956

Answer: $3.77

Maya made fruit punch for a party. She mixed 2 gallons of orange juice, 5 quarts of pineapple juice, 4 pints of cranberry juice, and 6 cups of apple juice. How many quarts did she make in all?

twelve and one half
14
15
sixteen and one half

Answers

Answer: sixteen and one half

Step-by-step explanation:

Find the surface area of the prism or pyramid. Round to the nearest whole number if necessary.

Answers

3.5 I think it’s ok

Death Valley has an altitude that is below sea level. Which situation describes a hiker in Death Valley who hikes until he reaches an altitude of 0 feet?

A - The hiker starts at 0 feet then decreases their altitude by 10 feet.
B - The hiker starts at -10 feet then decreases their altitude by 10 feet.
C - The hiker starts at 10 feet then increases their altitude by 10 feet.
D - The hiker starts at -10 feet then increases their altitude by 10 feet.

Answers

Answer: D

Step-by-step explanation:

Think of it logically: A and C are not below sea level so you can cross them out. And B doesn't work because if you decrease -10 by 10 you get -20. So, D is correct.

Answer : D because they started below 0 then reached 0

show your work plzz :))))

Answers

Answer:

9/10

Step-by-step explanation:

1/6 hour for 3/20 of his yard

6/6 hour or 1 hour = 6* 3/20 = 9/10 of his yard per hour

Mark as brainliest if this helped

Here I can answer so the other person can get brainliest

Please help.This is the 3rd time I did this. No links, fake answers, and "I don't know". done by 3:20. Do at least 2 screen shots. Thanks.

Answers

18.) C
11.) m= 1, b=-4

Megan has a pen for her dog. The dimensions of the pen are in meters (m) as shown below.

What is the area of the pen?

A.22 m²

B.24 m²

C.30 m²

D.42 m²

Answers

Answer:

22 m²

Step-by-step explanation:

I think jxxjxjcjnfvnjvchhd

ANSWER CORRECTLY DONT EXPLAIN

Answers

Answer:

336

Step-by-step explanation:

A square has four equal sides therefore you know the perimeter is 20+20+20+20 = 80. Since the square and the rectangle have the same perimeter the perimeter of the rectangle is also 80. We already know that two of the sides are 28 cm long so we can subtract those two sides from 80. That gives us 24 which is the sum of the two remaining sides. Each of these sides is 24/2 which is equivalent to 12. The formula for area of a rectangle is length times width. Your length is equal to 28 and your width is equal to 12. When you multiply these you get 336 which is your final answer.

Answer:

i have made it in above picture

ive broken half of my room because of this ixl

Answers

10 i think snsjsjsjjssp

Translate 4 left and then reflect over the y axis

Please hurry

Answers

Don’t follow the link

A. (3,-2)
B. (3,-13)
C. (8,-13)
I think those are the answers

a. 23 = x; x = 14
b. n/13 = 4; n = 52
c. 17y=85; y = 5. Determine whether the given value is a solution of the equation

Answers

Answer:

a. The given value is not a solution of the equation.

b. The given value is a solution of the equation.

c. The given value is a solution of the equation.

Step-by-step explanation:

a. 23 = x; x = 14 -> 23 = 14

This given value is not a solution to this equation because 23 doesn't equal 14.

b. n/13 = 4; n = 52.

Since, n = 52, replace n with 52 in n/13 = 4.

52/13 = 4 This given value is a solution to this equation.

c. 17y=85; y = 5

Since, y = 5, replace y with 5 in 17y=85.

17(5)=85 This given value is a solution to this equation.

I need help :^), tank you!

Answers

Hey i'm Nate

So for this you want to use order of operations AKA (PEMDAS)

P: Parenthesis

E: Exponents

M: Multiplication

D: Division

A: Addition

S: Subtraction

You want to work in that order however Multiplication and Division can be alternated likewise with Addition and Subtraction. So for this question you would take the problem which is 4__ 6 -2 x4 +511 = 527 and then you plug in the signs to see which one works. The answer would be X because you would take -2x4 which is -8 then you would take 6x4 which is 24 then you subtract -8 and 24 and you get 16 then you take 16 and add 511 and then you get 527.

Therefore the answer is X

How are people this smart

Find The Area Of The Rectangle: 2/3 x 5/7

Answers

Answer:

10/21 units²

Step-by-step explanation:

2/3 x 5/7 = 10/21 units²

Answer:

10/21

Step-by-step explanation:

5x2=10 / 3x7=21

10 / 21

What type of association does the graph show between x and y?

answer choices

Linear positive association

Nonlinear positive association

Linear negative association

Nonlinear negative association

Answers

Linear positive association

Bruce scored 16 goals this season. This is 4 more than three times the number he scored last season. Which equation could be used to find the number of goals Bruce scored last season?

a. 4n - 3 = 16
b. 4n + 3 = 16
c. 3n - 4 = 16
d. 3n + 4 = 16

Answers

Answer:

d.) 3n + 4 = 16

Step-by-step explanation:

n = # of goals last season

if he scored 16 goals in total that would be the answer to our equation. 4 more we would add 4 to the total problem leaving us with 3 times "the number" meaning we don't know the number so we substitue it for n. making the answer

3n + 4 = 16

I believe the answer is D, please correct me if I am wrong

Plz help ASAP I’ll give brainliest it would be so helpful of you:)

Answers

Answer:

Question 1: x + 5 = 20

Question 2: 5x = 20

Question 3: 20x = 5

Step-by-step explanation:

Answer:

1. 15

2. 4

3. A,C,E

Step-by-step explanation:

4. Please help thanks

Answers

I got A I hope this helps

i got 48(D)

i found this by using pythagorean therom to find the hypotenuse (20) then added them all up (20+16+12) which = 48

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