Mathematics College

Find x and y. Give reasons to justify your solution

Find X And Y. Give Reasons To Justify Your Solution

Answers

Answer 1

Answer:

Y=21

X=8

Step-by-step explanation:

In the middle there is a right angle

therefore 27 +3y=90

Y will be 21

Then x+27+63+8x+18=180

x=8

Hence 8+27+3(21)+8(8)+18=180

Answer 2

Step-by-step explanation:

27 + 3y = 90

3y = 90 - 27

y = 21

27 + (21×3) + x + 8x + 18 = 180 ( angles on a straight line sum up to 180)

9x + 108 = 180

9x = 180 - 108

9x = 72

x = 72/9

x = 8 degrees

Related Questions

help me (a) The total cost of rent is determined by recording x months of rent at $1400 per month, plus a $150 application fee.

Answers

Answer:

$1400x  + $150

Step-by-step explanation:

Let the total cost of rent used for a month be $1400 plus a $150 application fee.

This means that;

Total cost (1 month) = $1400(1) + $150 = $1550

TO calculate the cost for x months, we will simply multiply x with the cost of rent for 1 month as shown.

The cost of rent for x month = 1400x * $150

The cost of rent for x month = $1400x  + $150 (application fee are paid only once)

What is 50 decreased by 50%

Answers

Answer:

25

Step-by-step explanation:

50% (1/2) of 50 is 25

50-25=25

Answer:

i 100% sure it 25

Step-by-step explanation:

A painter uses 1.2 liters of the paint to cover 1m2 of the wall.

How many square meters he can cover with 12 liters of paint?

Answers

Answer:

10

Step-by-step explanation:

Question 3 of 10
Which of the following are trinomials?
A. 8x
B. 3y +5y2 + y
C. 6x2
D. x4 + x2 +1
E. x2 +3
F. x11

Answers

Answer:

So, only B and D are trinomials.

Step-by-step explanation:

A trinomial is an algebraic expression having three terms in it.

A. 8x  

Not a trinomial because, it contains only one term.

B. 3y +5y2 + y

A trinomial because, it contains three terms.

C. 6x2

Not a trinomial because, it contains only one term.

D. x4 + x2 +1

A trinomial because, it contains three terms.

E. x2 +3

Not a trinomial because, it contains two terms only.

F. x11

Not a trinomial because, it contains only one term.

So, only B and D are trinomials.

identify two factors that have a product of 1 7/8​

Answers

The answer will be 17 & 8

She has
9. Alyssa made 6 trays of popsicles. Each tray makes
8 popsicles. She gave 5 friends a popsicle. How many
popsicles does she have left over?​

Answers

Answer:

43 popsicles

Step-by-step explanation:

6 times 8 = 48

48 - 5 = 43

(im not sure about my answer)

Answer:

43 popsicles

Step-by-step explanation:

6 times 8 = 48

48 - 5 = 43

21947÷205 divide and check the result​

Answers

Answer (3dp):

107.058

Step-by-step explanation:

(image is explanation)

what is 3/4 h = – 45/52

Answers

Mixed number form: h = - 1 2/13 Hope that helps :))

Find the perimeter of the regular polygon. ​

Answers

Answer:

The perimeter is equal to 240.

Step-by-step explanation:

Since  the shape is a regular polygon, the sides are equal to each other, so those two equations are equal to each other.

So, to solve for x, then to find perimeter, we need to set the equations equal to each other.

5x + 10 = 7x + 4

Subtract 5x  and -4 from both sides.

6 = 2x

Divide each side by 2.

3 = x

Now, we plug it into one of the equations and multiply by 6 (6 sides in the regular polygon).

5( 6 + 2 )

40

40 * 6 = 240

The perimeter is equal to 240.

Perimeter of the regular polygon is 150 unit

Given:

Equal first side of regular polygon = 7x + 4

Equal second side of regular polygon = 5(x + 2)

Find:

Perimeter of the regular polygon

Computation:

We know that side of regular polygon are equal

7x + 4 = 5(x + 2)

7x + 4 = 5x + 10

7x - 5x = 10 - 4

2x = 6

x = 3

So,

Side of regular polygon = 7x + 4

Side of regular polygon = 7(3) + 4

Side of regular polygon = 25 unit

We know that given polygon is hexagon

Perimeter of hexagon = 6(a)

Perimeter of hexagon = 6(25)

Perimeter of hexagon = 150 unit

Learn more:

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Melissa lives on a street with 1 yellow house, 3 blue
houses, 8 white houses and 9 brown houses. What is the
probability that Melissa's house is blue?

Answers

Answer:

3/21  14%

Step-by-step explanation:

there are 21 houses and 3 are blue

Solve the following problems. Write the complete proof in your paper homework and for online (only) complete the probing statement (if any) that is a part of your proof or related to it.
Given: ∠CDE ≅ ∠CED, ∠A ≅ ∠B, Prove: DE ∥ AB

Answers

Answer:

angle E equals angle B and angle D equals angle a which means they are parallel bc angle c is the same for both

Step-by-step explanation:

Type your number answer in decimal form. Do not round.

0.4 liters = milliliters.

Answers

0.4 liters = 400 milliliters

A soccer player scored 12 goals this season. He scored 30% of the goals for his team this season. How many goals did the entire team score this season?

Answers

Answer:

40 goalas

Step-by-step explanation:

30% x ? = 12

12/30% =

12/(30/100) =

(100 x 12)/30 =

1,200/30 =

40

What is the DOMAIN of this graph?

Answers

Answer:

Is yellow

Step-by-step explanation:

an open circle for "less than" or "greater than", and a closed circle for "less than or equal to"

Complete the expression so that it forms a perfect square binomial- 3x^2+18x

Answers

Answer:

-3x²+18x-27

Step-by-step explanation:

Given :

-3X²+18x

perfect square : (a+b)²=a² + 2ab + b²

[tex]\frac{-3x^{2} }{-3} +\frac{18x}{-3} ... something else[/tex] divide by -3 to have just a² type

x² -6x ...and something

compare with the perfect squere formula and we know a² is x² , a is x, so second term is 2xb and is -6x so b= -3

x²-6x+9 = (x-3)²

if you reverse and multiply by (-3) we have

-3x²+18x-27

Is that a perfect square

Answers

Answer:

im gonna go with yes

Step-by-step explanation:

Answer:

is what a perfect square?

Step-by-step explanation:

there is no pic attached

Kerry just bought a new Apple iPod nano for 129. On the same day she also bought several albums from iTunes for 11.99 each If she spent $224.92 total how many albums did she buy

Answers

Answer:

8 albums

Step-by-step explanation:

the answer is 8 albums

Please help me with this. If you show your work I will give brainliest if there are 2 answers

Answers

Answer:  22.5

Work Shown:

450 calories = 20 ounces

450/20 calories = 20/20 ounces ..... divide both sides by 20

22.5 calories = 1 ounce

This smoothie has 22.5 calories per ounce.

Dwayne is trying to find the fraction represented by the repeating decimal 0.5. He completes the three steps shown:
1) Let x = 0.5

2) 10x = 5.5

3) 10x = 5.5
-x = 0.5
________
9x=5
what is the fraction equivalent of 0.5?
A. 9/5
B.4/9
C. 5/9
D. 5/13

Answers

Answer:

C. 5/9

Step-by-step explanation:

Three steps given end with:

9x = 5

The next step is, divide both sides by 9:

x = 5/9

Correct answer option:

C. 5/9

Answer:

C. 5/9

Step-by-step explanation:

10x = 5.5

  -x = 0.5

9x = 5

x = 5/9

therefore, the answer is C. 5/9

What is 45.3*4 equal please help me

Answers

Answer:

45.3 times 4 equals 181.2

Step-by-step explanation:

Answer:

181.2

Step-by-step explanation:

2 1

45.3

*    4

_____

181.2

Multiplication.

vertex,axis of symmetry,maximum or minimum,max or min value,range​

Answers

Answer:

the axis of symmerty is 4 and vertex is (4,3) correct me if i am wrong and you can use desmos to help you it is a graphing calculator

Step-by-step explanation:

Help me with this please

Answers

Answer:

The First Table

Step-by-step explanation:

The y-values increase inconsistently, while the other tables are constant.

Help me pleaseeeeeeeeeeeeeee

Answers

Answer:

D

Step-by-step explanation:

1 1/8 +3/4= 1 7/8

3- 1 7/8

= 1 1/8

Answer:

D

Step-by-step explanation:

123456789101112131415

assume that 2000 births are randomly selected and 64 of the births are girls. use subjective judgment to describe the number of girls as significantly high, significantly low, or neither significantly low nor significantly high. choose the correct answer below

Answers

Total no. of births = 2000

Births of girls = 64

Birth% of girls

[tex] = \frac{64}{2000} \times 100[/tex]

[tex] = \frac{64}{20} [/tex]

[tex] = \frac{6.4}{2} [/tex]

[tex] = 3.2\%[/tex]

Hence, the number of girls are significantly low.

I’m really bad at math can someone help me?(this is due today!)

Answers

okay i believe the first one is 4/7 and the second one is 2. also don’t listen to them. sometimes it can be hard and you start to stress. good luck and if this isn’t right i’m so sorry :) keep your head up!!!

sarah wants to buy a gym membership. One gym has a $150 joining fee and costs $35 a month. Another gym has no joining fee and costs $60 per month. in how many months will both gym memberships cost the same? What will that cost be?

Answers

Answer:

6 months

Step-by-step explanation:

60,120,180,240,300,360

150+35=185. 185,220,255,290,325,360

Q7)
A coffee shop owner would like to create a blend of cinnamon and hazelnut flavored coffee that
sells for $8.00 a pound. Currently, the cinnamon coffee sells for $6.00 per pound and the
hazelnut coffee sells for $9.00 per pound. Which of the following systems of equations could be
used to determine the amount c, in pounds, of the cinnamon flavored coffee, and the amount h,
in pounds, of the hazelnut flavored coffee, that should be mixed to obtain 20 pounds of the
desired blend?

Answers

The equation that is used to determine the amount c, in pounds, of the cinnamon flavored coffee, and the amount h, in pounds, of the hazelnut flavored coffee is c + h = 20 and 6c + 9h = 20(8)

What is an equation?

An equation is an expression that shows the relationship between two or more variables and numbers.

Let c represent the amount of cinnamon flavored coffee, and h represent the amount in pounds, of the hazelnut flavored coffee.

The required blend is 20 pounds:

c + h = 20    (1)

Also:

6c + 9h = 20(8)  (2)

From eqn 1 and 2:

The equation that is used to determine the amount c, in pounds, of the cinnamon flavored coffee, and the amount h, in pounds, of the hazelnut flavored coffee is c + h = 20 and 6c + 9h = 20(8)

Find out more on equation at: https://brainly.com/question/2972832

#SPJ1

Khalid purchases flower bulbs from a catalog for $2 each, plus a $4 shipping charge for the entire order. He spends $20 on flower bulbs. How many bulbs can Khalid purchase?

Answers

Answer:

he can get 8 bulbs

Step-by-step explanation:

first subtract 4 from 20 to get you total spent on just the bulbs, then you have 16 left so divide 16 by 2 and get 8

hope this helps!  have a good day!

Henry wrote a total of 12 pages over 4 hours. How many hours will Henry have to spend writing this week in order to have written a total of 15 pages? Assume the relationship is directly proportional.

Answers

Answer:

5 hours.

Step-by-step explanation:

12 ÷ 4 = 3. 3 pages an hour, which would mean 5 hours to write a total of 15 pages.

I hope this helped and if it did I would appreciate it if you marked me Brainliest. Thank you and have a nice day!

The first U.S. census was conducted in 1790. At that time, the population was 3.93 million. Since then, the U.S. population has grown by approximately 2.03% annually. At that rate, what was the population in 1850?

A. 13.12 million
B. 1.14 million
C. 25.71 million
D. 15.56 million

Answers

Answer:

It's actually A, because the US population got doubled ever year

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