Is it a rational or irrational?

Answer:

Step-by-step explanation:

Step one:

given data

we are told that the cost of the meal is $45.50

the amount of the tip is 20% of the cost of the meal.

let 20% of $45.0 be x

Step two:

So, let us solve for 20% of $45.50

which is 20/100*45.50

x=0.2*45.5

x=9.1

This shows that the amount of the tip is $9.1

Answer:

The equation after applying the Distributive property:

6 = 9x + 27

The equation solved:

x = -2.33333333

Step-by-step explanation:

The distributive property means that you will multiply the items inside of the parenthesis by the number right out side, in this case (x + 3) by 9.

9 * x = 9x

9 * 3 = 27

our new equation will look like:

6 = 9x + 27

now we will be able to solve!

let’s start by subtracting 27 from both sides.

27 - 27 = 0

6 - 27 = -21

9x = -21

divide both sides by 9.

9x/9 = x

-21/9 = -2.33333333

x = -2.33333333

The value of x from the given equation is x=-7/3.

The given equation is 6=9(x+3).

The distributive property states that an expression which is given in form of A (B + C) can be solved as A × (B + C) = AB + AC.

Using distributive property

6=9(x+3)

⇒ 6=9x+27

⇒ 9x=-21

⇒ x=-21/9

⇒ x=-7/3

Therefore, the value of x from the given equation is x=-7/3.

Learn more about the distributive property here:

https://brainly.com/question/5637942.

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Answer: DE is 15 and AB is 6

Step-by-step explanation:

Okay, so when two shapes are similar, that means they are proportional. Look at the sides. Notice how the lengths of each side on the larger triangle are all multiples of the lengths of the smaller triangle (side CE, for example, is 24, and AC is 8 since 24 is 3 times larger than 8, you know that particular side was dilated by 3x).

Since these are similar, but not congruent, you know that the dilation was applied to the entire shape equally. In other words, each side is dilated by 3 or is 300% larger.

So, to find DE, just multiply the corresponding side, BC, by 300%.

5*300% (or just 5*3) is 15. So, DE is 15cm long. Make sense?

For AB, you know the scale factor is 3, so you have to figure what number times 3 will get you 18. Because 6*3 is 18, you know AB has to be 6.

Answer:

What's the question?

Step-by-step explanation:

Answer:

Step-by-step explanation:

Rob needs 43.2 feet of border to place around the ceiling and Rob will have 6.8 feet of border left after placing it around the ceiling.

What is distance?

Distance is the measure of how far apart two objects or locations are from each other. It is usually measured in units such as meters, kilometers, miles, or feet. Distance is a scalar quantity, meaning it has only magnitude and no direction.

The perimeter of the ceiling is equal to the total length of border that Rob will need. The perimeter of a square is given by the formula P = 4s, where s is the length of one side of the square.

In this case, the length of one side of the square ceiling is 10.8 feet, so the perimeter is:

P = 4s = 4(10.8) = 43.2 feet

Therefore, Rob needs 43.2 feet of border to place around the ceiling.

Since he has purchased 50 feet of border, he will have:

50 - 43.2 = 6.8 feet

Rob will have 6.8 feet of border left after placing it around the ceiling.

To learn more about distance from the given link:

https://brainly.com/question/30923151

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Answer:

A. None of the answers are correct

Step-by-step explanation:

∠3 is a verticle angle to ∠1

linear pair means they add up to 180

complementary mean they add up to 90

Answer:

None of the answers are correct.

Step-by-step explanation:

1 and 8 are corresponding angles.

They are not vertical because vertical angles look like this ><

They are not a linear pair because linear pairs = 180 and right next to each other.

They are not complementary angles because complementary angles = 90

And 1 and 8 are more that 90.

So it's A

Hope this helps ya! Keep smiling!

Answer:

c

Step-by-step explanation:

16 divided by 4 equals 4

Answer:

B. 1/4

Step-by-step explanation:

4 divided by 16 is 0.25 which is 1/4

Answer:

Step-by-step explanation:

y=mx+b

m is slope

b is y-intercept

slope is 9/10

y-intercept is 1

Answer:

No mode

Step-by-step explanation:

Just no mode cause no number appears more than once.

Answer: 8 and 21

Step-by-step explanation:

Answer:

60 yds

Step-by-step explanation:

10 + 15 + 4 + (10 - 4) + 20 + (20 - 15) = 60

Answer: 60 Yards

In this model, we have all sides except for two. In order to find the perimeter of this, you would need all sides.

To find the missing sides you can see that the lenght of the side on the left is 10 yards. And the entire right side is equal to that left side. So, to find the missing side x you would need to solve: x+10-4. So, x is 6.

Do the same for the top and bottom to get the other missing side that is perpendicular to the side that is 4 yards is 5 yards.

Now that you have the lengths of all of the sides, you can solve for the perimeter. You would do,

[tex]15+4+6+20+10+5=60[/tex]

Please mark brainliest if correct :)

Answer:

1/5

Step-by-step explanation:

A metre is 100cm, thus

20cm/100cm= 1/5

0,1 chance is the correct answer

Answer:

x=1

Step-by-step explanation:

Look at the bottom of the triangle you will see that 1 = x

Answer:

u use speed triangle so 32/8=4

so he travelled 4 hours

MARK AS BRAINLIEST

MARK AS BRAINLIEST

Answer:

4 hours

Step-by-step explanation:

1hr=8 kilometers

2=16 kilometers

3=24 kilometers

4=32 kilometers

Answer:

d

Step-by-step explanation:

cause  it is d o.49

Answer:

Step-by-step explanation:

x + x + 2 = 86       Two even numbers add to 86

2x + 2 = 86           This is the equation. Subtract 2 from both sides

2x = 86 - 2              

2x = 84                  Divide by 2

2x/2 = 84/2

x = 42

(42, 44)

Answer:

Step-by-step explanation:

Given the approximate demand function of night drink expressed as;

p^2+200q^2=177​,

p is the price​ (in dollars) and;

q is the quantity demanded​ (in thousands).

Given

p = $7

q = 800

Required

dq/dp

Differentiating the function implicitly with respect to p shown;

2p + 400d dq/dp = 0

400q dq/dp = -2p

200qdq/dp = -p

dq/dp = -p/100q

substitute p and q into the resulting equation;

dq/dp = -7/100(800)

dq/dp = -7/80000

dq/dp = -0.0000875

This means that the rate of change of quantity demanded with respect to the price is  -0.0000875

Answer:

1 X 88=88

2 X 88=176

3X88=264

4X88=352

Step-by-step explanation:

Answer:

The stack will be 4.54 feet tall

Step-by-step explanation:

Firstly, we want to write the decimal expression for 2 3/11

That will be 2 + 0.2727

To 2 decimal place, that will be 2.27

Staking the two boxes means we are placing one on the other

So the height of the stack will be 2.27 + 2.27 = 4.54 feet

Answer:

32.39

Step-by-step explanation:

29.99 is 100%

       ?  is 8%

?= 29.99*8/100 about 2.40

so the final cost is the price + tax = 29.99 +2.40= 32.39

Answer:

3(2x + 7) = 6(x +4) - 3

<=> 6x + 21 = 6x + 24 - 3

<=> 21 = 21

=> this problem is infinite solution

Step-by-step explanation:

Answer:

SAS

Step by Step Explanation:

I know this because im doing the same thing in class rn and just finished an assignment just like this :)

Answer:

-17x² + 3x

Step-by-step explanation:

(-8x² + 3) + (-9x² + 3x - 3)

-8x² + 3 - 9x² + 3x - 3

-17x² + 3x

Answer:

A) 5

b) -5

c) 13

d) -5

e) -13

d) 13

g) 5

h) -13